Sentences with phrase «main polar sea»

Not exact matches

Species targeted include the polar bear, already under threat due to climate change: Shrinking sea ice makes it harder for the animals to hunt seals, their main food source.

The two main forces that conspire to destroy Earth's massive polar ice sheets are heat, which melts their surfaces via sunlight and warm air, and gravity, which drives glaciers to slide to the sea.

Gavin disputes that the main driver of the sea ice retreat is the albedo flip, but we are seeing not only polar amplification of global warming but positive feedback, which would not be explained simply by radiative forces and ocean currents.

Since 1980, the ice season in Hudson Bay has fallen at a rate of about one day a year, forcing polar bears to spent more time on dry land rather than hunting seals — their main source of food — on sea ice.

Even though it is not the main scope of our paper, we described the scientific context of polar bear ecology and explained how and why polar bears depend on their sea ice habitat (summarized in my previous blog post).

The melting and cooling of the polar ice caps are considered the main culprit in global sea level changes seen in the geologic record.

Such information is important for an assessment of how polar bears will be able to cope with the predicted changes of their main habitat: the Arctic sea ice.