Global warming said killing some species

Animal and plant species have begun dying off or changing sooner than predicted because of global warming, a review of hundreds of research studies contends.

At least 70 species of frogs, mostly mountain-dwellers that had nowhere to go to escape the creeping heat, have gone extinct because of climate change, the analysis says. It also reports that between 100 and 200 other cold-dependent animal species, such as penguins and polar bears are in deep trouble.