Global Warming Approaching 'Tipping Point'

Researchers around the world debate when it will be too late to reverse the impact of global warming.

"Now that most scientists agree human activity is causing Earth to warm, the central debate has shifted to whether climate change is progressing so rapidly that, within decades, humans may be helpless to slow or reverse the trend...This "tipping point" scenario has begun to consume many prominent researchers in the United States and abroad, because the answer could determine how drastically countries need to reduce their greenhouse gas emissions in the coming years...The debate has been intensifying because Earth is warming much faster than some researchers had predicted."

Full Story: Debate on Climate Shifts to Issue of Irreparable Change

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