Current multi-year droughts in the western U.S. and elsewhere force policy leaders to recognize that the challenge is not just for poor people living in faraway places. Challenges of food and water security are here now. Our leaders are awakening to the fact that, even if scientists cannot attribute current drought entirely to human-caused climate change, this is what climate change looks like -- and we don't like that look.
As summer and autumn sea ice diminishes in the Arctic Sea, polar bears spending more time on shore have been spotted eating eggs, hunting down the nesting birds that lay them, hunting other land animals and even chewing on edible plants growing onshore. But is that enough to sustain them in an ice-scarce Arctic? No, says a new study.