Explorers have spotted polar bear footprints on broken pieces of floating ice in the Arctic.
Greenpeace's vessel Arctic Sunrise has been travelling near Greenland where huge chunks of its ice caps have broken off.
They spotted the prints on the small sections of ice during their journey as they investigate the effects of climate change on the region.
Explorers have found what appear to be polar bear footprints on broken pieces of floating ice in the Arctic
Greenpeace's Arctic Sunrise ship spotted the prints on the chunks of ice as huge amounts are breaking off
While polar bears often spend time on sea ice, there are fears over its habitat loss due to rising temperatures and melting ice.
The small section of ice appeared very far from any other land, which scientists fear could lead to extinction.
The lack of sea ice cover forces bears to swim longer distances, depleting their energy stores and leading to drownings.
They spotted the prints on the small sections of ice during their journey as they investigate the effects of climate change on the region
It will also affect the ability of pregnant females to build suitable maternity dens.
It comes after Sir David Attenborough warned that polar bears could be extinct by 2030 because of melting ice.
He said: 'The Arctic Ocean is expected to have its first entirely ice-free summer in the 2030s, resulting in open water at the North Pole.
'For the polar bear, which relies on the northern sea ice as a platform from which to hunt seals, this is devastating.
It comes after Sir David Attenborough warned that polar bears could be extinct by 2030 because of melting ice
The veteran broadcaster warned that polar bear cubs are getting smaller and soon won't survive winter
'As the ice-free period lengthened, scientists detected a worrying trend. Pregnant females, drained of their reserves, were now giving birth to smaller cubs.
'It is quite possible that one year, the summer would be just that little bit longer, and the cubs born that year will be so small that they cannot survive their first polar winter. That whole population of polar bears would then crash.'
An estimated 42.3 square miles chunk of Greenland's ice cap is floating in the far north-east Arctic, which scientists say is evidence of rapid climate change.
The glacier section broke off the fjord called Nioghalvfjerdsfjorden, which is roughly 50 miles long and 12 miles wide, the National Geological Survey of Denmark and Greenland said on Monday.
Researchers working for the Geological Survey of Denmark and Greenland (GEUS) studied satellite images of the ice shelf taken over the past seven years. Left is the shelf in 2013 and right is the same shelf this yearsonos sonos One (Gen 2) - Voice Controlled Smart Speaker with Amazon Alexa Built-in - Black read more
The glacier is at the end of the Northeast Greenland Ice