Global Warming debate shifts to “tipping point”

An article from the Washington Post online edition (free registration required) argues that, now that most scientists agree that human activity is causing global warming, the debate is now beginning to focus on the ‘tipping point’ or point of no return when we can no longer reverse the changes that are taking place. Determining when such a point may occur given the current rate of warming will be essential in figuring out what the necessary reduction in greenhouse gases will need to be to prevent the catastrophic outcome of unchecked global warming.



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