Bloomberg: The United Nations got an even bigger-than-expected turnout on Earth Day when 175 nations signed the Paris climate pact April 22, but one surprising development was the rush of pledges by countries to ratify the deal in 2016--nearly enough to get it into effect by year's end, the top U.S. climate negotiator said in an interview with Bloomberg BNA.
Jonathan Pershing, who in April took the reins for U.S. negotiations in the wake of Todd Stern's departure as President Barack Obamas top climate negotiator,...