climbing area

A climbing area is a small geographical region with a concentration of opportunities for climbing. The term is most commonly used of rock climbing areas, but there are also ice climbing areas that have the right combination of steepness and water to result in climbable ice during the winter.

While there are many mountains and cliffs in the world, only a small percentage are popular for climbing. Mountain ranges are frequently at high elevations, remote, and tend to have poor weather much of the time, which means that the climber spends more time hiking, camping, and battling the elements than actually climbing. At the opposite end of the scale, many cliffs are too small or the rock is too unstable to make for an enjoyable and safe experience.

Characteristics

An ideal climbing area has these qualities:

* Close to an access road
* Large number of different routes
* Solid and stable rock
* Safe descent routes
* Good weather
* Free access
* Uncrowded

Yosemite Valley for instance is very nearly ideal. The valley is at a low elevation and allows climbing from March to November, it has an enormous amount of high-quality granite, with hundreds of routes ranging from the easy (The Grack) to some of the longest and hardest in the world, such as The Nose on El Capitan. As part of Yosemite National Park, the bases of the big walls are just a short walk from good roads, camping is available, hiking trails make the descents easy, and of course the scenery is world-class. Its main problem is that it's so popular that some routes will often have multiple parties of climbers getting in each other's way.

Most climbing areas fall short of the ideal, usually making up for it in some other way, sometimes just by being the closest good area to some city.

Development of a climbing area

Since rock climbing became an activity distinct from mountaineering in the 20th century, it is usually possible to trace the entire history of an area, generally starting with a few local climbers using the area as "practice rocks" in preparation for mountaineering expeditions. Inevitably a few in the local community would become more interested in the area for its own sake, exploring the area for new and unusual routes, typically looking for a combination of challenge, safety, and elegance of line, the last being a subjective quality that is nevertheless easy for climbers to agree upon.

This process has become known as "development" of a climbing area, and includes the placing of permanent bolts at key belays spots, rappel slings, as well as agreement on preferred equipment, minimization of environmental impact, and so forth, initially all done by word of mouth.

Development culminates in the publication of a climbing guidebook. The first edition of a guidebook may be little than a mimeographed pamphlet, but in the most highly developed areas, the books are thick tomes full of maps, photographs, and records of first ascents, and some have gone through multiple editions.

Climbers normally have a very light impact on an area; bolts are not visible from a distance, and only the knowledgeable will recognize the worn ground at the base of a route and the chalk residue on the rock for what they are. However, popular climbing areas eventually come to the attention of the area's legal stewards, whether they are the owners of private land, or the rangers of a park. In such cases, the local climbers may need to negotiate access rights or bolting policies. Places like Yosemite National Park actually have a staff of climbing rangers, who work with climbers to develop and enforce usage policies, and to perform rescues.

Cliff

In geography and geology, a cliff is a significant vertical, or near vertical, rock exposure. Cliffs are formed as erosion landforms due to the processes of erosion and weathering that produce them. Cliffs are common on coasts, in mountainous areas, escarpments and along rivers. Cliffs are usually formed by rock that is resistant to erosion and weathering. Sedimentary rocks most likely to form sandstone, limestone, chalk, and dolomite. Igneous rocks, such as granite and basalt also often form cliffs.

An escarpment (or scarp) is a type of cliff, formed by the movement of a geologic fault, or a landslide.

Most cliffs have some form of scree slope at their base. In arid areas or under high cliffs, these are generally exposed jumbles of fallen rock. In areas of higher moisture, a soil slope may obscure the talus.

Many cliffs also feature tributary waterfalls or rock shelters. Sometimes a cliff peters out at the end of a ridge, with tea tables or other types of rock columns remaining.

Given that a cliff need not be exactly vertical, there can be ambiguity about whether a given slope is a cliff or not, and also about how much of a certain slope to count as a cliff. (For example, given a truly vertical rock wall above a very steep slope, one could count only the rock wall, or the combination.) This makes listings of cliffs an inherently uncertain endeavor.

The highest cliff (rock wall, mountain face) in the world, is Nanga Parbat's Rupal Flank in the Himalayas, that rises 4600 meters above its base.

According to some sources, the highest cliff in the world, about 1,340 m high, is the east face of Great Trango in the Karakoram mountains of northern Pakistan. (This uses a fairly stringent notion of cliff, as the 1,340 m figure refers to a nearly vertical headwall; adding in a very steep approach brings the total height to over 1,600 m.) The highest sea cliffs, 1,010 m high, are located at Kalaupapa, Hawaii. (This uses a less stringent definition, as the average slope of these cliffs is about 1.7, corresponding to an angle of 60 degrees.)

Considering a truly vertical drop, Mount Thor on Baffin Island in Arctic Canada is often considered the highest at 1,370 m (4,500 ft) high in total (the top 480 m (1,600 ft) is overhanging), and is said to give it the longest purely vertical drop on Earth at 1,250 m (4,100 ft). There is some doubt as to whether this height is exceeded by other cliffs on Baffin Island or in Greenland, however.

The Ordnance Survey distinguish between cliffs (continuous line along the top edge with projections down the face) and outcrops (continuous lines along lower edge).
Nanga Parbat, highest cliff (rock wall, mountain face) in the world

The highest cliff in the solar system may be Verona Rupes, an approximately 20 km (12 mile) high fault scarp on Miranda, a moon of Uranus. The following is an incomplete list of cliffs of the world. (see also Category:Cliffs)

Asia

Above Land

* Nanga Parbat, Pakistan Occupied Kashmir, 4600 m
* Great Trango Towers, Baltoro Muztagh, Northern Areas, Pakistan, 1340 m
* Uli Biaho Towers, Baltoro Glacier, Northern Areas, Pakistan
* Baintha Brakk (The Ogre), Panmah Muztagh, Northern Areas, Pakistan
* The Latok Group, Panmah Muztagh, Northern Areas, Pakistan
* Various cliffs in the Ak-Su Valley of Kyrgyzstan cliffs are high and steep.
* Masada, Israel , Dead Sea

Europe

Above Sea

* Hornelen, Norway, 860 m above Frøysjøen
* Cape Enniberg, Faroe Islands, 750 m above North Atlantic
* Croaghaun, Achill Island, Ireland, 668 m above Atlantic Ocean
* Vixía Herbeira, Northern Galicia, Spain, 621 m above Atlantic Ocean
* Preikestolen, Norway, 604 m above Lysefjorden
* Slieve League, Ireland, 601 m above Atlantic Ocean
* Cabo Girão, Madeira, 589 m above Atlantic Ocean
* Conachair, St Kilda, Scotland 427 m above Atlantic Ocean
* Cap Canaille, France, 416 m above Mediterranean sea is the highest sea cliff in France
* St John's Head (Hoy Orkney Islands Scotland) at 335 m is the most vertical sea cliff in the UK
* Hangman cliffs, Devon 318 m above Bristol Channel is the highest sea cliff in England
* Dingli Cliffs, Malta, 250 m above Mediterranean sea
* Cliffs of Moher, Ireland, 217 m above Atlantic Ocean
* Cap de la Nau, Spain, 200 m above Mediterranean sea
* Beachy Head, England, 162 m above the English Channel
* Snake Island, Romania, 41 m above the Black Sea
* Møns Klint, Denmark, 143 m above Baltic Sea
* White cliffs of Dover, England, 100 m above the Strait of Dover
* Strunjan cliff, Slovenia, 80 m above the Adriatic Sea

Above Land

* Troll Wall, Norway 1100 m above base
* Mięguszowiecki Szczyt north face rises to 1043 m above Morskie Oko lake level, High Tatras, Poland
* Kjerag, Norway 984 m.
* Mały Kieżmarski Szczyt (north face), Tatra Mountains, Slovakia about 900 m denivelation (vertical rise)
* Giewont (north face), Tatra Mountains, Poland, 852 m above Polana Strążyska glade
* Kazalnica Mięguszowiecka, Tatra Mountains, Poland 576 m above the Czarny Staw pod Rysami
* The six great north faces of the Alps (Cima Grande di Lavaredo, Eiger, Grandes Jorasses, Matterhorn, Petit Dru and Piz Badile)

North America
Mount Thor, Baffin Island, Nunavut, Canada, commonly regarded as the highest purely vertical drop on Earth
Southwest face of El Capitan from Yosemite Valley

Several big granite faces in the Arctic regions vie for the title of 'highest purely vertical drop on Earth', but reliable measurements are not always available. The possible contenders include (measurements are approximate):

* Mount Thor, Baffin Island, Canada; 1,370 m (4,500 ft) total; top 480 m (1,600 ft) is overhanging. This is commonly regarded as being the largest purely vertical drop on Earth at 1,250 m (4,100 ft).
* The sheer north face of Polar Sun Spire, in the Sam Ford fjord of Baffin Island, has been reported as exceeding Mount Thor's west face in height [3].
* Ketil's west face in Tasermiut, Greenland has been reported as 1,400 m - 1,450 m high, (although some doubt has been cast on this)[4][5].

Other notable cliffs include:

* Mount Asgard, Baffin Island, Canada; vertical drop of about 1,200 m (4,000 ft).
* A variety of other cliffs measured at approximately 1,000 m (3,280 ft) in height can be found along the Sam Ford fjord in Baffin Island, such as Walker Citadel, Kiguti Peak and Great Sail Peak, whilst there are others in Querbitter Fjord, and in Tasermiut, Greenland.
* El Capitan, Yosemite Valley, Sierra Nevada, California, United States; about 900 m (3,000 ft) high
* Northwest Face of Half Dome, near El Capitan; 1,340 m (4,400 ft) total, vertical portion about 610 m (2,000 ft)
* Painted Wall in Black Canyon of the Gunnison National Park, Colorado, United States; 685 m (2,250 ft)
* The west face of Notch Peak in southwestern Utah, United States; a limestone cliff of about 670 m (2,200 ft)
* All faces of Devil's Tower, Wyoming, United States
* Various faces of Shiprock, New Mexico, United States
* The North Face of North Twin Peak, Rocky Mountains, Alberta, Canada
* All walls of the Stawamus Chief, Squamish, British Columbia, Canada
* Calvert Cliffs along the Chesapeake Bay in Maryland

South America
Salto Angel from Raton, Venezuela.

* Autana Tepui, Venezuela stands 1,300 m above the forest floor.
* Auyan Tepui, Venezuela, about 1000 m (location of Angel Falls) (the falls are 979 m, the highest in the world)
* Pared de Gocta, Peru, 771 m
* Fortaleza canyon, Aparados da Serra National Park, Brazil, about 720 m
* Pedra Azul, Pedra Azul State Park, Espirito Santo, Brazil, 540 m
* Pão de Açúcar/Sugar Loaf, Rio de Janeiro, Brazil, 395 m
* All faces of Cerro Torre, Patagonia, Chile-Argentina
* All faces of Cerro Chalten (Fitz Roy), Patagonia, Argentina-Chile
* Various faces of the Torres del Paine group, Patagonia, Chile

Africa

Above Sea

* Kogelberg, Western Cape, South Africa, 1289 m above False Bay, Atlantic Ocean
* Table Mountain, Cape Town, Western Cape, South Africa, 1086 m above Atlantic Ocean
* Twelve Apostles, Cape Town, South Africa. A series of 17 precipitous peaks (all sharp cliff faces) ranging from ca 700 m to 1067 m above the Atlantic Ocean
* Risco de Faneque, Gran Canaria-Canary Islands, Spain, 1027 m above Atlantic Ocean
* Guguy's Cliffs, Gran Canaria-Canary Islands, Spain, 725 m above Atlantic Ocean
* La Mérica, La Gomera-Canary Islands, Spain, 711 m above Atlantic Ocean
* Andén Verde, Gran Canaria-Canary Islands, Spain, 690 m above Atlantic Ocean
* Karbonkelberg, Western Cape, South Africa, 653 m above Hout Bay, Atlantic Ocean
* La Peña's Cliffs, El Hierro-Canary Islands, Spain, 652 m above Atlantic Ocean
* Los Gigantes, Tenerife-Canary Islands, Spain, 637 m above Atlantic Ocean
* Chapman's Peak, Cape Town, South Africa, 596 m above Atlantic Ocean
* Anaga's Cliffs, Tenerife-Canary Islands, Spain, 592 m above Atlantic Ocean
* Risco de Famara, Lanzarote-Canary Islands, Spain, 580 m above Atlantic Ocean
* Buenavista's Cliffs, Tenerife-Canary Islands, Spain, 546 m above Atlantic Ocean
* Cape Hangklip, Western Cape, South Africa, 453.1 m above False Bay, Atlantic Ocean
* Punta Gaviota's Cliff, La Palma-Canary Islands, Spain, 435 m above Atlantic Ocean
* The Sentinel, Western Cape, South Africa, 331 m above Hout Bay, Atlantic Ocean
* Cape Point, Western Cape, South Africa, 249 m above Atlantic Ocean.

Above Land

* Drakensberg Amphitheatre, South Africa 1200 m above base, 5km long. The Tugela Falls, the world's second tallest waterfall, falls 948 m over the edge of the cliff face.
* Mount Meru, Tanzania Caldera Cliffs, 1500 m
* Klein Winterhoek, Western Cape, South Africa, 1220 m above base.

Oceania

Above Sea

* Kalaupapa, Hawaii, 1010 m above Pacific Ocean

Clean climbing

Clean climbing is a style of rock climbing that avoids damage to the rock by eschewing the drilling of bolts and the hammering of pitons. The style became practical with the invention of clean protection: nuts in the 1930s and spring loaded camming devices in the 1970s. The 1970s also saw the introduction of the Leave No Trace concept, which, among similar ethics for other outdoor activities, stipulates that climbers should follow these clean climbing notions.

Clean climbing is the preferred style of climbing in most parts of the United Kingdom where it is more commonly known as traditional climbing (trad); British climbers tolerate bolts and pitons on only a few cliffs. In other parts of the world it co-exists with sport climbing.

Clean climbers can carry and place protection by hand, removing them just as easily and cleanly.

Pitons and bolts are rarely used (almost exclusively in aid climbing) due to the damage they cause to the rock. This ethic has evolved such that on most modern climbs, any bolts and pitons installed are left in place (known as "fixed") for all future parties to use, in order to prevent multiple damaging placements.

Clean climbing differs from Sport Climbing, a popular form of climbing in many parts of Europe and the United States (as well as other countries), in that protection for Sport Climbing is provided entirely by fixed bolts, and clean gear is rarely used. Sport Climbing typically involves shorter routes (usually 100' in height or less) focusing on overhung, strenuous movements, and does not require the considerable skill of placing and removing clean protective gear.

Some routes are partially bolt protected and partially gear protected. These are most commonly referred to as "mixed protection" routes.

The debate between Traditional, or Trad Climbers, and Sport Climbers continues to this day over what the acceptable usage of bolts for protection is. Most Traditional climbers believe that bolts should not be used on any route where clean protection is possible, in order to preserve the rock. Some sport climbers believe that all routes should be bolted completely so that gear placement skills are not necessary to attempt the climb.

The general ethic is very dependent upon the area in question and varies widely by region. Generally speaking, the traditional ethic holds in most areas, and bolts are not used for protection unless there is no other option.

Left to traditional clean climbers, major UK climbing areas—Malham Cove, for example—could have been climbed and still remain clear of expansion bolts. Despite this, bolting was permitted by the BMC on this Site of Special Scientific Interest

campus board

A campus board is a training tool that has been widely adopted to improve rock climbing performance. Typically, a user ascends or decends the campus board using only their hands. Campus boards can take a variety of different forms and may incorporate a variety of materials. As one example, a campus board may comprise horizontal thin slats or rails of wood attached to an inclined board in a ladderlike configuration. However, some implementations may utilize bolt on climbing holds or sections of pipe. A campus board is generally set at overhanging angle of inclination that is between vertical and 20 degrees. One consideration for selecting the angle of inclination is the avoidance of any interference that may result between the user's legs and the campus board or wall.

The campus board was invented by Wolfgang Güllich in 1988 while he was training for a new route, Action Directe, which required extreme dynamic finger strength. The first campus board was hung at a university in a gym called The Campus Centre. Hence the term "campus" has been applied to the name of the training board, training method, and style of climbing, or "campusing" in which only the user's hands and arms are used.

There are a variety of training approaches that may be used with a campus board. As one example, a user may alternate the use of specific fingers to increase finger strength when ascending or descending the board. As another example, upper-body strength may be increased by utilizing large lunges between specific rails or holds of the campus board. Reactive training may be used to increase muscle recruitment by dynamically moving between the campus board rails simultaneously with both hands. Training on a campus board may result in better performance due to the improvement of motor training, increased finger strength on a variety grips, and greater power and lock-off strength of the arms. However, it should be appreciated that many top climbers do not utilize campus board training, nor does campus board training necessarily translate directly to improved performance on the rock.

In general, campus board training should only be attempted by climbers who already have a threshold level of strength, as the physical intensity of campusing can easily result in injury. While there is no right time to begin a campus board training regime, some have followed a general approach which requires the user to first be capable of bouldering at least V5, or climb at least French 6c

Boulder

In geology, a boulder is a rock with grain size of usually no less than 256 mm (10 inches) diameter. While a boulder may be small enough to move or roll manually, others are extremely massive. In common usage, a boulder is too large for a person to move. Smaller boulders are usually just called rocks or stones. The word boulder comes from Middle English "bulder" which was probably of Scandinavian origin such as dialectal Swedish "bullersten" meaning "noisy stone" (Imagine a large stone in a stream, causing water to roar around it) from "bullra" (to roar, cf. Dutch "bulderen", with the same meaning) and "sten" (stone).

In places covered by ice sheets during Ice Ages, such as Scandinavia, northern North America, and Russia, ice has moved and formed granite boulders, also named glacial erratics. One of the largest is used as the pedestal of the Bronze Horseman in Saint Petersburg, Russia.

Some noted rock formations involve giant boulders exposed by erosion, such as the Devil's Marbles in Australia's Northern Territory, the Wairere Boulders in New Zealand, where an entire valley contains only boulders, and The Baths on the island of Virgin Gorda in the British Virgin Islands.

The climbing of large boulders often requires developing special abilities, and has given rise, since the late 19th century, to the sport of bouldering.

Action Directe (climb)

Action Directe is a famously difficult sport climb in the Frankenjura, Germany.

It has been climbed by ten people.

The first ascent (FA) was by Wolfgang Güllich in 1991, who climbed the route using a 16 move sequence. Simpson and Koyamada used a different sequence with only 11 moves.

The repeat ascents were by:

* Alexander Adler on 9 September 1995.
* Iker Pou on 7 June 2000.
* Dave Graham on 21 May 2001.
* Christian Bindhammer on 14 May 2003.
* Rich Simpson on 13 October 2005.
* Dai Koyamada on 15 October 2005.
* Markus Bock on 22 October 2005.
* Kilian Fischhuber on 25 September 2006.
* Adam Ondra on 19 May 2008.
* Patxi Usobiaga on 24 October 2008.

Despite being generally recognized as the world's first 9a, Güllich actually gave the route a UIAA grade of XI, which corresponds to 8c+/5.14c.

It was the first recognised route of the grade, and is considered by many to be something of a benchmark for the grade. It is also famous for its style, involving long dynamic moves off single-finger pockets. Wolfgang Güllich invented the campus board to train the very specific technique needed for this route.

Black ice

Black ice is ice frozen without many air bubbles trapped inside, making it transparent. Black ice takes the color of the material it lies on top of, often wet asphalt or a darkened pond. Its difficult-to-detect nature makes it a significant hazard to drivers, pedestrians, and sailors.
On Roads

Black ice, also known as "glare ice" or "clear ice," typically refers to a thin coating of glazed ice on a surface, often a roadway. While not truly black, it is transparent, allowing the usually-black asphalt/macadam roadway to be seen through it, hence the term. It is unusually slick compared to other forms of roadway ice.

Because it contains relatively little entrapped air in the form of bubbles, black ice is transparent and thus very difficult to see (as compared to snow, frozen slush). In addition, it often is interleaved with wet road, which is identical in appearance. For this reason it is especially hazardous when driving or walking because it is both hard to see and unexpectedly slick.

Bridges and overpasses can be especially dangerous. Black ice forms first on bridges and overpasses because air can circulate both above and below the surface of the elevated roadway, causing the pavement temperature to drop more rapidly. This is often indicated with "Bridge May Be Icy" warning signs.

Black ice may form even when the ambient temperature is several degrees above the NTP freezing point of water (0°C) if the air warms suddenly after a prolonged cold spell that leaves the surface of the roadway well below the freezing point temperature.


The term black ice is sometimes used to describe any type of ice that forms on roadways, even when standing water on roads turns to ice as the temperature falls below freezing. However, this use of the term black ice is not included in the American Meteorological Society Glossary of Meteorology.

A similar hazardous condition can also occur when diesel fuel spills onto a road surface because the lighter fractions evaporate quickly to leave a greasy slick which is difficult for oncoming drivers to spot in time to prevent skidding.
Ice skating

In New England, "black ice" refers to a clear type of pond ice that forms in very cold weather. Black ice has the appearance of thick, slightly cracked glass laid on the water, and its transparency reveals the darkness of the pond beneath: hence the name. Black ice is very hard and smooth, making gliding easier, but stopping slower and more difficult.

Thin, clear ice also has acoustic properties which are useful to tour skaters. Skating on clear ice radiates a tone whose frequency depends on the thickness of the ice.

Maritime black ice

Black ice is a danger for cold-weather fishing trawlers. As ice forms on its superstructure, a boat can become top heavy, and in rough weather this unbalanced extra weight may capsize it. Thick layers of black ice can form rapidly on boats where they encounter a combination of air temperatures cold enough to freeze seawater and rough seas that splash seawater over the entire boat.

Arête

An arête is a thin, almost knife-like, ridge of rock which is typically formed when two glaciers erode parallel U-shaped valleys. The arête is a thin ridge of rock that is left separating the two valleys. Arêtes can also form when two glacial cirques erode headwards towards one another, although frequently this results in a saddle-shaped pass, called a col. The edge is then sharpened by freeze-thaw weathering. The word "arête" is actually French for fishbone; similar features in the Alps are described with the German equivalent term Grat or Kamm (comb).

Where three or more cirques meet, a pyramidal peak is created.

Cleaver

A cleaver is a type of arête that separates a unified flow of glacial ice from its uphill side into two glaciers flanking, and flowing parallel to, the ridge. Cleaver gets its name from the way it resembles a meat cleaver slicing meat into two parts. A cleaver may be thought of as analogous to an island in a river. A common situation has the two flanking glaciers melting to their respective ends before their courses can bring them back together; the exceedingly rare analogy is a situation of the two branches of a river drying up, before the downstream tip of the island, by evaporation or absorption into the ground.

The location of a cleaver is often an important factor in the choice among routes for glacier flow. For example, following a cleaver up or down a mountain may avoid travelling on or under an unstable glacial, snow, or rock area. This is usually the case on those summer routes to the summit whose lower portions are on the south face of Mount Rainier: climbers traverse the "flats" of Ingraham Glacier, but ascend Disappointment Cleaver and follow its ridgeline rather than ascending the headwall either of that glacier or (on the other side of the cleaver) of Emmons Glacier.

Examples

Notable examples of arêtes include:

* Knife Edge, on Mount Katahdin, Maine
* Clouds Rest, in the Sierra Nevada, California
* The Minarets, in the Sierra Nevada, California
* The Garden Wall, in Glacier National Park, Montana
* Crib Goch, in Snowdonia National Park, Wales
* Striding Edge in the English Lake District
* The Catwalk, in the Olympic National Park, state of Washington

Alpine style

Alpine style refers to mountaineering in a self-sufficient manner, thereby carrying all of one's food, shelter, equipment etc. as one climbs, as opposed to expedition style (or siege style) mountaineering which involves setting up a fixed line of stocked camps on the mountain which can be accessed at one's leisure. Additionally, alpine style means the refusal of fixed ropes, high altitude porters and the use of supplemental oxygen.

Many consider Alpine style to be the purest form of mountaineering, setting a standard to which all mountaineers should aspire. This style became well-known and popular with Reinhold Messner, when he and Peter Habeler climbed Gasherbrum I without oxygen equipment in 1975. It was Hermann Buhl's idea to demonstrate Alpine style in the Karakoram at the successful Austrian Broad Peak expedition in 1957; in pure Alpine style the members of this expedition later climbed Skil Brum (Marcus Schmuck and Fritz Wintersteller) and approached Chogolisa (Hermann Buhl and Kurt Diemberger).

The benefits of alpine style are that, generally, much less time is spent on the route, reducing objective dangers such as avalanches or blizzards. This can be a major factor on routes with ice fields full of blocks of ice hundreds of feet tall which could fall at any time. Snow and ice conditions often change over the course of a day forcing climbing parties to climb in the early hours before the sun melts the snow or ice making it unsuitable and more susceptible to avalanche. This tendency to climb in the morning has led to the term "Alpine Start". An "Alpine Start" is a start that happens in the early morning ranging from 11:00 PM on long routes to not long before sunrise for shorter routes or faster parties. An "Alpine Start" must begin in the dark.

The problems encountered while alpine style climbing are related to lack of support. Without fixed ropes to retreat down in case of emergency, or a lower camp to return to, the commitment of alpine style is greater than expedition style in terms of the choice to ascend or descend. A climbing group caught at a point where conditions do not allow further ascent must consider other options such as an unplanned bivouac (perhaps without the appropriate gear), rappels (leaving multiple pieces of protection behind), or moving to another route from their current position (perhaps without adequate knowledge of the alternative route). However, alpine style often is cheaper and faster for those on a budget.

Mountain hut

A Mountain hut (also known as alpine hut, mountain shelter, and mountain hostel) is a building located in the mountains intended to provide food and shelter to mountaineers, climbers and hikers. Mountain huts are usually operated by a section of an Alpine Club. Most mountain huts are tended to by Alpine Club personnel throughout the mountaineering season, who prepare meals and drinks for mountaineers, similar to a restaurant, but usually with a limited selection, as it is not always easy to transport the food to the hut. Furthermore, mountain huts provide simple sleeping berths. Any mountaineer is allowed to access Alpine huts, but members of an Alpine Club usually get a discount. Some huts in more remote areas have no personnel, but mountaineers are allowed to access them.

As there is a lot of mountaineering activity in the Alps, there is a large number of huts along the mountaineering paths. One cannot necessarily count on finding a similarly dense network of paths and huts in other mountain ranges.

In the United Kingdom and Ireland the tradition is of unwardened "climbing huts" providing fairly rudimentary accommodation (but superior to that of a bothy) close to a climbing ground; the huts are usually conversions (eg of former quarrymen's cottages, or of disused mine buildings), and are not open to passers-by except in emergency. Many climbing clubs in the UK have such huts in Snowdonia or in the Lake District. A well-known example is the 'Charles Inglis Clark Memorial Hut' (the 'CIC Hut') under the northern crags of Ben Nevis in Scotland - this is a purpose-built hut, high up the mountain, probably nearest in character to the Alpine huts.

Altitude sickness

Altitude sickness, also known as acute mountain sickness (AMS), altitude illness, or soroche, is a pathological condition that is caused by acute exposure to low air pressure (usually outdoors at high altitudes). It commonly occurs above 2,400 metres (approximately 8,000 feet). Acute mountain sickness can progress to high altitude pulmonary edema (HAPE) or high altitude cerebral edema (HACE).

The cause of altitude sickness is still not understood. It occurs in low atmospheric pressure conditions but not necessarily in low oxygen conditions at sea level pressure. Although treatable to some extent by the administration of oxygen, most of the symptoms do not appear to be caused by low oxygen, but rather by the low CO2 levels causing a rise in blood pH, alkalosis. The percentage of oxygen in air remains essentially constant with altitude at 21 percent, but the air pressure (and therefore the number of oxygen molecules) drops as altitude increases. Altitude sickness usually does not affect persons traveling in aircraft because modern aircraft passenger compartments are pressurized.

A related condition, occurring only after prolonged exposure to high altitude, is chronic mountain sickness, also known as Monge's disease.

An unrelated condition, although often confused with altitude sickness, is dehydration, due to the higher rate of water vapor lost from the lungs at higher altitudes.

Introduction

High altitude or mountain sickness is defined when someone feels sick at high altitudes, such as in the mountains or any other altitude-related sicknesses. It is hard to determine who will be affected by altitude-sickness as there are no specific factors that compare with this susceptibility to altitude sickness. However, most people can climb up to 2500 meters (8000 feet) normally.

Generally, different people have different susceptibilities to altitude sickness. For some otherwise healthy people, Acute Mountain Sickness (AMS) can begin to appear at around 2000 meters (6,500 feet) above sea level, such as at many mountain ski resorts, equivalent to a pressure of 80 kPa. AMS is the most frequent type of altitude sickness encountered. Symptoms often manifest themselves 6-10 hours after ascent and generally subside in 1 to 2 days, but they occasionally develop into the more serious conditions. Symptoms include headache, fatigue, stomach illness, dizziness, and sleep disturbance. Exertion aggravates the symptoms.

High altitude pulmonary edema (HAPE) and cerebral edema (HACE) are the most ominous of these symptoms, while AMS, retinal hemorrhage, and peripheral edema are less severe forms of the disease. The rate of ascent, altitude attained, amount of physical activity at high altitude, as well as individual susceptibility, are contributing factors to the onset and severity of high-altitude illness.

Altitude sickness usually occurs following a rapid ascent and can usually be prevented by ascending slowly. In most of these cases, the symptoms are temporary and usually abate as altitude acclimatisation occurs. However, in extreme cases, altitude sickness can be fatal.

The word "soroche" came from South America and originally meant "ore", because of an old, incorrect belief that it was caused by toxic emanations of ores in the Andes mountains.

Signs and symptoms

Headache is a primary symptom used to diagnose altitude sickness, although headache is also a symptom of dehydration. A headache occurring at an altitude above 2,400 meters (8000 feet = 76 kPa), combined with any one or more of the following symptoms, can indicate altitude sickness:

* Lack of appetite, nausea, or vomiting
* Fatigue or weakness
* Dizziness or light-headedness
* Insomnia
* Pins and needles
* Shortness of breath upon exertion
* Persistent rapid pulse
* Drowsiness
* General malaise
* Peripheral edema (swelling of hands, feet, and face).

Symptoms that may indicate life-threatening altitude sickness include:

* pulmonary edema (fluid in the lungs):-
o persistent dry cough
o fever
o shortness of breath even when resting
* cerebral edema (swelling of the brain):-
o headache that does not respond to analgesics
o unsteady gait
o increased vomiting
o gradual loss of consciousness.

Severe cases

The most serious symptoms of altitude sickness are due to edema (fluid accumulation in the tissues of the body). At very high altitude, humans can get either high altitude pulmonary edema (HAPE), or high altitude cerebral edema (HACE). The physiological cause of altitude-induced edema is not conclusively established. It is currently believed, however, that HACE is caused by local vasodilation of cerebral blood vessels in response to hypoxia, resulting in greater blood flow and, consequently, greater capillary pressures. On the other hand, HAPE may be due to general vasoconstriction in the pulmonary circulation (normally a response to regional ventilation-perfusion mismatches) which, with constant or increased cardiac output, also leads to increases in capillary pressures. For those suffering HACE, dexamethasone may provide temporary relief from symptoms in order to keep descending under their own power.

HAPE occurs in ~2% of those who are adjusting to altitudes of ~3000 m (10,000 feet = 70 kPa) or more. It can progress rapidly and is often fatal. Symptoms include fatigue, severe dyspnea at rest, and cough that is initially dry but may progress to produce pink, frothy sputum. Descent to lower altitudes alleviates the symptoms of HAPE.

HACE is a life threatening condition that can lead to coma or death. It occurs in about 1% of people adjusting to altitudes above ~2700 m (9,000 feet = 73 kPa). Symptoms include headache, fatigue, visual impairment, bladder dysfunction, bowel dysfunction, loss of coordination, paralysis on one side of the body, and confusion. Descent to lower altitudes may save those afflicted with HACE.

PREVENTION

Avoiding alcohol ingestion

As alcohol tends to dehydrate, avoidance in the first 24 hours at a higher altitude is optimal.

Strenous activity

People with recurrent AMS note that by avoiding strenuous activity such as skiing, hiking, etc in the first 24 hours at altitude reduces their problems.

Altitude acclimatization

Altitude acclimatisation is the process of adjusting to decreasing oxygen levels at higher elevations, in order to avoid altitude sickness. Once above approximately 3,000 meters (10,000 feet = 70 kPa), most climbers and high altitude trekkers follow the "golden rule" - climb high, sleep low. For high altitude climbers, a typical acclimatization regime might be to stay a few days at a base camp, climb up to a higher camp (slowly), then return to base camp. A subsequent climb to the higher camp would then include an overnight stay. This process is then repeated a few times, each time extending the time spent at higher altitudes to let the body adjust to the oxygen level there, a process that involves the production of additional red blood cells. Once the climber has acclimatised to a given altitude, the process is repeated with camps placed at progressively higher elevations. The general rule of thumb is to not ascend more than 300 metres (1,000 feet) per day to sleep. That is, one can climb from 3,000 (10,000 feet = 70 kPa) to 4,500 metres (15,000 feet = 58 kPa) in one day, but one should then descend back to 3,300 metres (11,000 feet = 67.5 kPa) to sleep. This process cannot safely be rushed, and this explains why climbers need to spend days (or even weeks at times) acclimatising before attempting to climb a high peak. Simulated altitude equipment that produce hypoxic (reduced oxygen) air can be used to acclimate to altitude, reducing the total time required on the mountain itself.

Altitude Acclimatization is necessary for some people who rapidly move from lower altitudes to more moderate altitudes, usually by aircraft and ground transportation over a few hours, such as from sea level to 7000 feet of many Colorado, USA mountain resorts. Stopping at an intermediate altitude overnight can reduce or eliminate a repeat episode of AMS.

Drugs

Acetazolamide may help some people to speed up the acclimatisation process when taken before arriving at altitude, and can treat mild cases of altitude sickness. A typical dose is 250mg twice daily starting the day before moving to altitude.

A single randomized controlled trial found that sumatriptan may help prevent altitude sickness.

For centuries, indigenous cultures of the Altiplano, such as the Aymaras, have used coca leaves to treat mild altitude sickness.

Oxygen enrichment

In high-altitude conditions, oxygen enrichment can counteract the effects of altitude sickness, or hypoxia. A small amount of supplemental oxygen reduces the equivalent altitude in climate-controlled rooms. At 3,400 m (67 kPa), raising the oxygen concentration level by 5 percent via an oxygen concentrator and an existing ventilation system provides an effective altitude of 3,000 m (70 kPa), which is more tolerable for surface-dwellers. The most effective source of supplemental oxygen at high altitude are oxygen concentrators that use vacuum swing adsorption (VSA) technology. As opposed to generators that use pressure swing adsorption (PSA), VSA technology does not suffer from performance degradation at increased altitude. The lower air density actually facilitates the vacuum step process.

Other methods

Drinking plenty of water will also help in acclimatisation to replace the fluids lost through heavier breathing in the thin, dry air found at altitude, although consuming excessive quantities ("over-hydration") has no benefits and may lead to hyponatremia.

Oxygen from gas bottles or liquid containers can be applied directly via a nasal cannula or mask. Oxygen concentrators based upon PSA, VSA, or VPSA can be used to generate the oxygen if electricity is available. Stationary oxygen concentrators typically use PSA technology, which has performance degradations at the lower barometric pressures at high altitudes. One way to compensate for the performance degradation is to utilize a concentrator with more flow capacity. There are also portable oxygen concentrators that can be used on vehicle DC power or on internal batteries, and at least one system commercially available measures and compensates for the altitude effect on its performance up to 4,000 meters (13,123 feet). The application of high-purity oxygen from one of these methods increases the partial pressure of oxygen by raising the FIO2 (fraction of inspired oxygen).

Treatment

The only reliable treatment and in many cases the only option available is to descend. Attempts to treat or stabilise the patient in situ at altitude is dangerous unless highly controlled and with good medical facilities. However, the following treatments have been used when the patient's location and circumstances permit:

* Oxygen may be used for mild to moderate AMS below 12,000 feet and is commonly provided by physicians at mountain resorts. Symptoms abate in 12-36 hours without the need to descend.
* For more serious cases of AMS, or where rapid descent is impractical, a Gamow bag, a portable plastic pressure bag inflated with a foot pump, can be used to reduce the effective altitude by as much as 1,500 meters (5,000 feet). A Gamow bag is generally used only as an aid to evacuate severe AMS patients not to treat them at altitude.
* Acetazolamide may assist in altitude aclimatisation but is not a reliable treatment for established cases of even mild altitude sickness.
* Some claim that mild altitude sickness can be controlled by consciously taking 10-12 large, rapid breaths every 5 minutes, (hyperventilation) but this claim lacks both empirical evidence and a plausible medical reason as to why this should be effective. If overdone, this can remove too much carbon dioxide causing hypocapnia.
* The folk remedy for altitude sickness in Ecuador , Peru and Bolivia is a tea made from the coca plant. See mate de coca.
* Other treatments include injectable steroids to reduce pulmonary edema, this may buy time to descend but treats a symptom, it does not treat the underlying AMS.

Alpine butterfly knot

The Butterfly Loop, also known as the Lineman's Loop or alpine butterfly loop, is a "non-jamming loop on the bight": a loop which may be tied in a rope with two fixed ends, and can take loads on both ends of the original rope, and on the loop. The alpine butterfly loop is a symmetrical and more secure version of the butterfly loop.

Usage

The Butterfly Loop has a high breaking strength and is regarded by mountaineers as one of the strongest knots to attach climbers to the middle of a rope, such that they have room to move around even when the main rope goes tight, and they can be supported in either direction from the main rope. The loop is typically attached to a climbing harness by carabiner.

It can also be used to isolate a worn section of rope, where the knot is tied such that the worn section is used for the centre of the loop (which of course does not receive a carabiner or bears any loads in this case).

Advantages

* Does not reduce the strength of the rope by very much
* Will not slip (after initial settling)
* Allows for the knot to be loaded three ways (each end of the main line and by the loop)
* Relatively easy to undo after loading (more difficult if wet)
* Very easy to adjust the size of the bight

Disadvantages

* Difficult to tie one-handed
* Difficult to casually inspect
* Requires some training/practice to master

Earth Day

Earth Day is a name used for two different observances, both held annually during spring in the northern hemisphere, and autumn in the southern hemisphere. These are intended to inspire awareness of and appreciation for the Earth's environment. The United Nations celebrates Earth Day, which was founded by John McConnell in 1969, each year on the March equinox, while a global observance originated by Gaylord Nelson as an environmental teach-in, and since January 1970 also called Earth Day, is celebrated in many countries each year on April 22, including the U.S.

In September 1969, at a conference in Seattle, Washington, U.S. Senator Gaylord Nelson announced that in the spring of 1970 there would be a nationwide grassroots demonstration on the environment. Senator Nelson first proposed the nationwide environmental protest to thrust the environment onto the national agenda.” "It was a gamble," he recalls, "but it worked." Five months before the first April 22 Earth Day, on Sunday, November 30, 1969, The New York Times carried a lengthy article by Gladwin Hill reporting on the rising tide of environmental events::

"Rising concern about the environmental crisis is sweeping the nation's campuses with an intensity that may be on its way to eclipsing student discontent over the war in Vietnam...a national day of observance of environmental problems...is being planned for next spring...when a nationwide environmental 'teach-in'...coordinated from the office of Senator Gaylord Nelson is planned...." Senator Nelson also hired Denis Hayes as the coordinator.

Each year, the April 22 Earth Day marks the anniversary of the birth of the modern environmental movement in 1970. Among other things, 1970 in the United States brought with it the Kent State shootings, the advent of fiber optics, "Bridge over Troubled Water," Apollo 13, the Beatles' last album, the death of Jimi Hendrix, and the meltdown of fuel rods in the Savannah River nuclear plant near Aiken, South Carolina -- an incident not acknowledged for 18 years. At the time, Americans were slurping leaded gas through massive V8 sedans. Industry belched out smoke and sludge with little fear of legal consequences or bad press. Air pollution was commonly accepted as the smell of prosperity. Environment was a word that appeared more often in spelling bees than on the evening news. But Earth Day 1970 turned that all around.

On April 22, 20 million Americans took to the streets, parks, and auditoriums to demonstrate for a healthy, sustainable environment. Denis Hayes, the national coordinator, and his youthful staff organized massive coast-to-coast rallies. Thousands of colleges and universities organized protests against the deterioration of the environment. Groups that had been fighting against oil spills, polluting factories and power plants, raw sewage, toxic dumps, pesticides, freeways, the loss of wilderness, and the extinction of wildlife suddenly realized they shared common values.

Mobilizing 200 million people in 141 countries and lifting the status of environmental issues onto the world stage. Earth Day on April 22 in 1990 gave a huge boost to recycling efforts worldwide and helped pave the way for the 1992 United Nations Earth Summit in Rio de Janeiro.

As the millennium approached, Hayes agreed to spearhead another campaign, this time focused on global warming and a push for clean energy. The April 22 Earth Day in 2000 combined the big-picture feistiness of the first Earth Day with the international grassroots activism of Earth Day 1990. For 2000, Earth Day had the Internet to help link activists around the world. By the time April 22 rolled around, 5,000 environmental groups around the world were on board, reaching out to hundreds of millions of people in a record 184 countries. Events varied: A talking drum chain traveled from village to village in Gabon, Africa, for example, while hundreds of thousands of people gathered on the National Mall in Washington, D.C., USA.


Founded by the organizers of the first April 22 Earth Day in 1970, Earth Day Network promotes environmental citizenship and year round progressive action worldwide. Earth Day Network is a driving force steering environmental awareness around the world. Through Earth Day Network, activists connect change in local, national, and global policies. Earth Day Network’s international network reaches over 17,000 organizations in 174 countries, while the domestic program engages 5,000 groups and over 25,000 educators coordinating millions of community development and environmental protection activities throughout the year. Earth Day is the only event celebrated simultaneously around the globe by people of all backgrounds, faiths and nationalities. More than a half billion people participate in Earth Day Network campaigns every year.

History of the Equinox Earth Day

The equinoctial Earth Day is celebrated on the March equinox (around 20 March) to mark the precise moment of astronomical mid-spring in the Northern Hemisphere, and of astronomical mid-autumn in the Southern Hemisphere. An equinox in astronomy is that moment in time (not a whole day) when the center of the Sun can be observed to be directly above the Earth's equator, occurring around March 20 and September 23 each year. Although astronomically they occur at the mid-point of the seasons, in most cultures the equinoxes and solstices are considered to start or separate the seasons.

John McConnell first introduced the idea of a global holiday called "Earth Day" at a UNESCO Conference on the Environment in 1969. The first Earth Day proclamation was issued by San Francisco Mayor Joseph Alioto on March 21, 1970. Celebrations were held in various cities including San Francisco, in Davis, California with a multi-day street party, and elsewhere. UN Secretary-General U Thant supported McConnell's global initiative to celebrate this annual event, and on February 26, 1971, he signed a proclamation to that effect, saying:

May there only be peaceful and cheerful Earth Days to come for our beautiful Spaceship Earth as it continues to spin and circle in frigid space with its warm and fragile cargo of animate life.

Secretary General Waldheim observed Earth Day with similar ceremonies on the March equinox in 1972, and the United Nations Earth Day ceremony has continued each year since on the day of the March equinox (the United Nations also works with organizers of the April 22nd global event). Margaret Mead added her support for the equinox Earth Day, and in 1978 declared:

"EARTH DAY is the first holy day which transcends all national borders, yet preserves all geographical integrities, spans mountains and oceans and time belts, and yet brings people all over the world into one resonating accord, is devoted to the preservation of the harmony in nature and yet draws upon the triumphs of technology, the measurement of time, and instantaneous communication through space.
EARTH DAY draws on astronomical phenomena in a new way – which is also the most ancient way – using the vernal Equinox, the time when the Sun crosses the equator making night and day of equal length in all parts of the Earth. To this point in the annual calendar, EARTH DAY attaches no local or divisive set of symbols, no statement of the truth or superiority of one way of life over another. But the selection of the March Equinox makes planetary observance of a shared event possible, and a flag which shows the Earth as seen from space appropriate."

At the moment of the equinox, it is traditional to observe Earth Day by ringing the Japanese Peace Bell, a bell donated by Japan to the United Nations. Over the years celebrations have occurred in various cities worldwide at the same time as the celebration at the UN. On March 20, 2008, in addition to the ceremony at the United Nations, ceremonies were held in New Zealand, and bells were sounded in California, Vienna, Paris, Lithuania, Tokyo and many other locations. The equinox Earth Day at the UN is organized by the Earth Society Foundation

The April 22 Earth Day

Growing Eco-activism before Earth Day 1970

The 1960s had been a very dynamic period for ecology in the US, in both theory and practice. It was in the mid-1960s that Congress passed the sweeping Wilderness Act, and Supreme Court Justice William O. Douglas asked, "Who speaks for the trees?" Pre-1960 grassroots activism against DDT in Nassau County, NY, had inspired Rachel Carson to write her shocking bestseller Silent Spring (1962).

Earth Day 1970

Responding to widespread environmental degradation, Gaylord Nelson, a United States Senator from Wisconsin, called for an environmental teach-in, or Earth Day, to be held on April 22, 1970. Over 20 million people participated that year, and Earth Day is now observed each year on April 22 by more than 500 million people and national governments in 175 countries. Senator Nelson, an environmental activist, took a leading role in organizing the celebration, hoping to demonstrate popular political support for an environmental agenda. He modeled it on the highly effective Vietnam War protests of the time. The concept of Earth Day was first proposed in a memo to JFK written by Fred Dutton.

According to Santa Barbara, California Community Environmental Council:

The story goes that Earth Day was conceived by Senator Gaylord Nelson after a trip he took to Santa Barbara right after that horrific oil spill off our coast in 1969. He was so outraged by what he saw that he went back to Washington and passed a bill designating April 22 as a national day to celebrate the earth.


Senator Nelson selected Denis Hayes, a Harvard University graduate student, as the national coordinator of activities. Hayes said he wanted Earth Day to "bypass the traditional political process." Garrett DuBell compiled and edited The Environmental Handbook the first guide to the Environmental Teach-In. Its symbol was a green Greek letter theta, "the dead theta".

The nationwide event included opposition to the Vietnam War on the agenda, but this was thought to detract for the environmental message. Pete Seeger was a keynote speaker and performer at the event held in Washington DC. Paul Newman and Ali McGraw attended the event held in New York City.


The Results of Earth Day 1970

Earth Day proved popular in the United States and around the world. The first Earth Day had participants and celebrants in two thousand colleges and universities, roughly ten thousand primary and secondary schools, and hundreds of communities across the United States. More importantly, it "brought 20 million Americans out into the spring sunshine for peaceful demonstrations in favor of environmental reform."

Senator Nelson stated that Earth Day "worked" because of the spontaneous response at the grassroots level. 20 million demonstrators and thousands of schools and local communities participated. He directly credited the first Earth Day with persuading U.S. politicians that environmental legislation had a substantial, lasting constituency. Many important laws were passed by the Congress in the wake of the 1970 Earth Day, including the Clean Air Act, laws to protect drinking water, wild lands and the ocean, and the creation of the United States Environmental Protection Agency.

Now observed in 175 countries, and coordinated by the nonprofit Earth Day Network, according to whom Earth Day is now "the largest secular holiday in the world, celebrated by more than a half billion people every year." Environmental groups have sought to make Earth Day into a day of action which changes human behavior and provokes policy changes.

The significance of the date

* April 22 was the birthday of actor Eddie Albert. Because of Eddie Albert's early work with environmental causes and groups, when International Earth Day was created, it was decided it must be held on April 22 because that is his birthday.
* April 21 was the birthday of John Muir, who founded the Sierra Club. This is not lost on organizers who thought that April 22 was Muir's birthday.
* April 22, 1970 was the 100th birthday of Vladimir Lenin. Time reported that some suspected the date was not a coincidence, but a clue that the event was "a Communist trick," and quoted a member of the Daughters of the American Revolution saying, "Subversive elements plan to make American children live in an environment that is good for them." J. Edgar Hoover, director of the U.S. Federal Bureau of Investigation, may have found the Lenin connection intriguing; it was alleged the FBI conducted surveillance at the 1970 demonstrations. The idea that the date was chosen to celebrate Lenin's centenary still persists in some quarters, although Lenin was never noted as an environmentalist.
* April 22 is also the birthday of Julius Sterling Morton, the founder of Arbor Day, a national tree-planting holiday started in 1872. Arbor Day became a legal holiday in Nebraska in 1885, to be permanently observed on April 22. According to the National Arbor Day Foundation "the most common day for the state observances is the last Friday in April . . . but a number of state Arbor Days are at other times to coincide with the best tree planting weather." It has since been largely eclipsed by the more widely observed Earth Day, except in Nebraska, where it originated.

Earth Week

Many cities extend the Earth Day celebration to be an entire week, usually starting on April 16, and ending on Earth Day, April 22nd.


According to Flags of the World, the Ecology Flag was created by cartoonist Ron Cobb, and was published for the first time in October 25, 1969. The flag was patterned after the flag of the United States, and had thirteen stripes alternating green and white. Its canton was green with a yellow Theta. It originally had a symbol that was a combination of the letters "E" and "O" taken from the words "Environment" and "Organism", respectively. Later flags used either a Theta because of its historic use as a warning symbol, or the Peace Symbol. Theta would later become associated with Earth Day.

As a 16 year old high school student, Betsy Vogel, an environmental advocate and social activist that enjoyed sewing costumes and unique gifts, made a 4 x 6-foot (1.8 m) green and white "theta" ecology flag to commemorate the first Earth Day. Initially denied permission to fly the flag at C.E. Byrd High School in Shreveport, Louisiana. Vogel sought and received authorization from the Louisiana Legislature and Louisiana Governor John McKeithen in time to display the flag for Earth Day.

Criticisms of Earth Day

Some environmentalists have grown critical of Earth Day, particularly those in the Bright green environmentalism camp. They charge that Earth Day has come to symbolize the marginalization of environmental sustainability, and that the celebration itself has outlived its usefulness .

Other survival skills

For long-term survival some other skills are useful:

* Knife or Multitool - usage and sharpening (a knife or Multitool is very important for all survival situations and for many aspects of bushcraft)

A sheath knife of high carbon steel with a 4 to 6 inch blade is invaluable for the creation of tools, splitting wood for fire building using a baton, building shelters and many other skills.

* Climbing and Mountaineering techniques
* Ropework
o Making rope from materials such as the inner bark of trees, other plant fibers, or animal sinews
o Knowledge of knots and their applications
* Making a raft or boat
* Weapons are an essential part of a large survival outfit. Weapons protect you and those around you and allow you to procure food through hunting. There are many points of view on this issue but by and large, a good 22 long rifle will serve to procure game and provide for moderate protection from predators both the four legged and two legged variety.
* Be sure to get proper training to be safe with firearms.
* Basic primitive weapons can be important tools: they include spears, Vietnam crossbows, longbows, the throwing stick, clubs etc. Many primitive tools can also fill the weapon class as well such as a stone axe. First hand instruction is essential.

We are the explorer

we are a mountaineer...
we are a climber...
we live on earth together
to climb..
the top of the world.

Mountaineering

Mountaineering is the sport, hobby or profession of walking, hiking, trekking and climbing up mountains. It is also sometimes known as alpinism, particularly in Europe. While it began as an all-out attempt to reach the highest point of unclimbed mountains, it has branched into specializations addressing different aspects of mountains and may now be said to consist of three aspects: rock-craft, snow-craft and skiing, depending on whether the route chosen is over rock, snow or ice. All require great athletic and technical ability, and experience is also a very important part of the matter.

Climbing Definition

Climbing

For other uses, see Climbing (disambiguation).
Rock climbers on Valkyrie at The Roaches in Staffordshire, England.
A competitor in a rope climbing event, at Lyon's Part-Dieu shopping centre.

Climbing is the activity of using one's hands or feet to ascend a steep object. It is done both for recreation (to reach an inaccessible place, or for its own enjoyment) and professionally, as part of activities such as maintenance of a structure, or military operations.

Climbing activities include:
Mountain climbing (Mountaineering): Ascending mountains for sport or recreation. It often involves rock and/or ice climbing.
Rock climbing: Ascending rock formations, often using climbing shoes and a chalk bag. Equipment such as ropes, bolts, nuts, hexes and camming devices are normally employed, either as a safeguard or for artificial aid.