Five arresting images of climate change that are impossible to ignore

The effects of climate change are becoming ever more visible. These compelling photographs capture the consequences of global warming at the peak of their impact.

Polar bears pushed to the brink

Climate change is the single biggest threat to polar bear survival, according to the International Union for the Conservation of Nature. The animals depend on seasonal sea ice, which they use as a platform to hunt seals.

Polar bears have been losing weight as Arctic sea ice melts, a recent study out of Canada found. Female polar bears weighed about 10 percent less in 2009 than they did in 1984, scientists found. As retreating sea ice shrinks their habitat, starvation threatens the species. Read More…