Jerry Brown: ‘We are talking about extinction’

Gov. Jerry Brown, issuing an ominous appeal on climate change, spoke at a climate change conference in Vatican City on July 21, 2015, saying the world may already have “gone over the edge” on global warming and that humanity must reverse course o
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Gov. Jerry Brown, issuing an ominous appeal on climate change, spoke at a climate change conference in Vatican City on July 21, 2015, saying the world may already have “gone over the edge” on global warming and that humanity must reverse course o