The U.N. is convening a conference in Paris in December 2015 whose objective is to finalize a new treaty to reduce greenhouse gas emissions...

Global warming is the rise in the average temperature of Earth's atmosphere and oceans since the late 19th century and its projected continuation. Since the ...
The U.N. is convening a conference in Paris in December 2015 whose objective is to finalize a new treaty to reduce greenhouse gas emissions...