Steven Kazlowski / Polar bear (Ursus maritimus) young bear rolling around in the snow, on newly formed pack ice during autumn freeze up, Beaufort Sea, off Arctic coast, Alaska

Ernie Janes,Ernie Janes / Yellow Labrador jumping breakwater, Norfolk. April

David Woodfall / Little tern (Sterna albifrons) newly hatched chicks in researchers hand ,prior to being weighed and measured and rung ,to determine fitness in relation to climate change .

Ashley Cooper / Man leaping at sunset, Red Screes in the Lake district National Park, Cumbria, UK. April 2009

Ashley Cooper / Man fell running on Red Screes at sunset in the Lake district National Park, Cumbria, UK. April 2009

Ashley Cooper / Rapidly receding Brenva Glacier in the Mont Blanc range, Italy, with cyclists. August 2014

Ashley Cooper / Mountain bikers on Mont de la Saxe above Courmayeu, Italy. August 2014

Ashley Cooper / Walkers on the Tour Du Mont Blanc share shelter from heavy rain with a goat on the Col Du Bonhomme near Les Contamines, French Alps. France. August 2014

Ashley Cooper / Walkers on the Tour Du Mont Blanc cross a suspension bridge across the meltwater river from the Bionnassay glacier; France. August 2014

Ashley Cooper / Hill walker on Ben Lawers above Loch Tay in the Scottish Highlands, UK, Scotland. April 2014

Ashley Cooper / Mountaineer on a via ferrata bridge in the Italian Dolomites, Italy.

Ashley Cooper / A mountaineer on a summit in the Italian Dolomites. Italy.