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Climate Change: The Critical Decade

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Uploaded on Jul 12, 2011

Professor Hans Joachim Schellnhuber

Recent climate science suggests our future looks dire. Most relevant observed trends - in greenhouse-gas emissions, global and regional warming, sea-ice loss and sea-level rise - are in the upper range of projections. Despite a worldwide political consensus to limit global average temperature rise to less than 2 degrees celsius, the collective effect of current national measures will lead to average warming of up to 4 degrees by the end of this century. Climate change now threatens to disrupt the Earth's systems in ways that are beyond all human experience

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