Timed for UN Earth Summit in Rio! Report: ‘Earth appears headed toward catastrophic and irreversible environmental changes’ — But Paul Ehrlich says report is ‘too optimistic’
'Their report, in the June 7 issue of the journal Nature, describes an exponentially increasing rate of species extinctions, extreme climate fluctuations, and other threats that together risk a level of upheaval not seen since the large-scale extinctions 65 million years ago that killed off the dinosaurs...The size of the problems demands a global response, Mr. Barnosky said. "The only way out of them is cooperation between nations, between individuals on a global basis'
