Newsweek: Thirty-one countries formally ratified the Paris climate change agreement at the U.N. on Wednesday. The major diplomatic move significantly increases the prospects that the landmark global warming treaty will now come into effect soon, possibly before the end of the year.
For this to happen, at least 55 countries accounting for a minimum of 55 percent of global emissions must deposit their instruments of ratification with the U.N. With Wednesdays breakthrough, 60 countries accounting for 47.7...