"Cutting emissions by 2020 to a level that could keep a global, 21st century, temperature rise under 2 degrees C is technologically and economically feasible, says a comprehensive new study released today by the UN Environment Programme (UNEP)." 

If you read carefully what is required (accelerated uptake of renewables, more energy efficiency, more public transport and strong mitigation efforts from aviation and shipping), you know that this is a wishful thinking report which is politically irrealistic.

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