Pal Hermansen / Avalanche on Gullemot (Uria aalge) nesting cliff on first day birds return to breed. Finnmark, Norway. March.

Ashley Cooper / Avalanche on Machapuchare or Fishtail Peak in the Annapurna Himalaya, Nepal. It was caused by a massive block of glacial ice detaching from the summit cliffs, 29th December 2012.

Ashley Cooper / Avalanche on Machapuchare / Fishtail Peak in the Annapurna Himalaya, Nepal. It was caused by a massive block of glacial ice detaching from the summit cliffs. 29th December 2012.

Ashley Cooper / Avalanche on Machapuchare / Fishtail Peak in the Annapurna Himalaya, Nepal. It was caused by a massive block of glacial ice detaching from the summit cliffs. 29th December 2012.

Peter Cairns / 2020VISION / Mist swirling around Coire an Lochain in winter, Cairngorm Mountains, Cairngorms NP, Highland, Scotland, UK, February 2011

Floris van Breugel / Avalanche lilies (Erythronium montanum) blooming in colourful alpine meadow, with glaciated Mount Olympus behind, Olympic National Park's backcountry Bailey Range, Washington, USA. July 2008.

Uri Golman / Snow avalanche falling into sea, Jakobshavn, Ilulissat, Kangia, Icefjord, Greenland. October 2008.

Andrew Walmsley / Kea (Nestor notabilis) on rock, summit of Avalanche Peak), Arthur's Pass, New Zealand, February 2009, Vulnerable species

Colin Monteath / Powder snow avalanche falling from Gasherbrum, Baltoro Glacier, Karakoram Mountains, Pakistan

Ashley Cooper / Snow covered mountainside with avalanche debris. Two Hummock Island, Palmer Archipelago, Antarctica. January 2020.

Mike Read / Glacier lily (Erythronium grandiflorum) at the edge woodland, beside the Bear Tooth All American Highway, Wyoming, USA, June.

David Pattyn / Remains from avalanches after the snow has melted with broken trees and masses of rocky debris remaining, Valsavarenche, Gran Paradiso National Park, Aosta Valley, Italy

David Pattyn / Snow masses from avalanches remaining well into spring in Valsavarenche after a winter with huge destructive avalanches, Valsavarenche, Gran Paradiso National Park, Aosta Valley, Italy

Andy Trowbridge / Avalanche Creek, waterfall. Arthur's Pass National Park, New Zealand. August.

Andy Trowbridge / Avalanche Creek, waterfall. Arthur's Pass National Park, New Zealand. August.

David Pattyn / Trees scattered after an avalanche in a winter landscape, Valsavarenche, Gran Paradiso National Park, Italy. January

Ashley Cooper / Avalanche on Machapuchare / Fishtail Peak in the Annapurna Himalaya, Nepal. It was caused by a massive block of glacial ice detaching from the summit cliffs. 29th December 2012.

Ashley Cooper / Avalanche on Machapuchare / Fishtail Peak in the Annapurna Himalaya, Nepal. It was caused by a massive block of glacial ice detaching from the summit cliffs. 29th December 2012.

Ashley Cooper / Heavy snow in the French Alps, France.

Ashley Cooper / Climber on the Aonach Eagach ridge, Scotland, UK.

Ashley Cooper / Climber i on Sgurr Alasdair on the Cuillin Ridge, Isle of Skye, Scotland. March 2006

Ashley Cooper / Mountaineer in blizzard, Cairngorm Scotland UK. February 2007

Ashley Cooper / Mountaineer in blizzard, Cairngorm Scotland UK. February 2007

Ashley Cooper / Mountaineer in blizzard, Cairngorm Scotland UK. February 2007

Ashley Cooper / Member of the Scottish Avalanche Information Service looks at snow crystals to help assess avalanche risk on Cairngorm in the Cairngorm National Park, Scotland, UK. March 2009

Ashley Cooper / Member of the Scottish Avalanche Information Service looks at snow crystals to help assess avalanche risk on Cairngorm in the Cairngorm National Park, Scotland, UK. March 2009

Ashley Cooper / Member of the Scottish Avalanche Information Service demonstrates how to assess avalanche risk on Cairngorm in the Cairngorm National Park in Scotland UK. February 2009

Ashley Cooper / Equipent used by the Scottish Avalanche Information Service to assess avalanche risk in the Scottish mountains, Cairngorms National Park, UK. February 2009

Ashley Cooper / Fljotsdalur hydro power station, Karahnjukar a new controversial hydro electricity project, which flooded a large area of wilderness. North East Iceland, September 2010.

Christophe Courteau / Sign about high risk of avalanches in Valloire Ski Resort, Dept. of Savoie in the French Alps. Maurienne Valley. Savoie. France.

Christophe Courteau / Avalanche in the mountains of Torres Del Paine National Park, Southern Patagonia, Chile.

Cyril Ruoso / Avalanche rolling down mountain, Llaca glacier surrounding Cordillera Blanca Mountain Range, Andes, Huscaran National Park, Peru

Mike Read / Glacier lily (Erythronium grandiflorum) The Grand Loop, Yellowstone National Park, Wyoming, USA June

Mike Read / Glacier lily (Erythronium grandiflorum) The Grand Loop, Yellowstone National Park, Wyoming, USA June

Mike Read / Glacier lily (Erythronium grandiflorum) mass at woodland edge, The Grand Loop, Yellowstone National Park, Wyoming USA June

David Pattyn / Avalanche coming down a steep mountain side. Gran Paradiso National Park, Italy, November.

Brent Stephenson / Avalanche on the mountainside above Neko Harbour, Antarctic Peninsula, Antarctica, January 2012.

Kirkendall-Spring / Avalanch lily (Erythronium montanum) Spray Park, Mount Rainier National Park, Washington, USA, August.

Kirkendall-Spring / Black and white photograph of Glacier lilies (Erythronium grandiflorum) on High Divide in Olympic National Park, Washington, USA.

Kirkendall-Spring / Avalanche lilies (Erythronium grandiflorum) and Lake Solitude in Grand Teton National Park, Wyoming, USA, July 2013.

Kirkendall-Spring / Avalanche lilies (Erythronium grandiflorum) and Lake Solitude in Grand Teton National Park, Wyoming, USA, July 2013.

Kirkendall-Spring / Avalanche lilly (Erythronium montanum) near Appleton Pass in Olympic National Park, Washington, USA, August.

Kirkendall-Spring / Avalanche lilly (Erythronium montanum) in an alpine meadow with misty mountains in the background from near Appleton Pass, Olympic National Park, Washington, USA. August 2013.

Floris van Breugel / Fields of Avalanche Lilies (Erythronium montanum) in the fading sunset light high on the slopes of the Olympic mountains with a view of Mt Olympus (far left) in Olympic National Park, Washington, USA,...

Orsolya Haarberg / Chamois (Rupicapra rupicapra) lying beside snow from recent avalanche. Gran Paradiso National Park, the Alps, Italy.

Gavin Hellier / Avalanche prevention fences, St Anton am Arlberg, Tirol, Austria, 2008

Gavin Hellier / Avalanche prevention fences, St Anton am Arlberg, Tirol, Austria, 2008

Bruno D'Amicis / Grass in spring appears first on avalanche sites. Western Tatras, Slovakia, June 2009.