Earth facing 'catastrophic' loss of species:

"Destruction of natural habitats and the effects of climate change are causing species to die out at 100 to 1,000 times faster than the natural rate, leading some scientists to warn we are facing the next mass extinction.

Nearly one-quarter of the world's mammals, one-third of amphibians and more than one-tenth of bird species are threatened with extinction. Climate change alone is expected to force a further 15%- 37% of species to the brink of extinction within the next 50 years."

(via)