Silencing Climate Change Deniers

via Oxfam International Flickr/creative commons

According to a new study in the journal Science,"Four boundaries are assessed to have been crossed, placing humanity in a danger zone."   The report defined climate change and loss of species as two core areas of concern. Each "has the potential on its own to drive the Earth System into a new state should they be substantially and persistently transgressed," the authors wrote. It would almost seem absurd at this point to recognize anyone, high or low, who would argue that the human impacts on the environment have not already reached the "danger zone." But it's not absurd, it's a ...

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