2.7 degree Celsius temperature increase several billion dollars a year Paris Agreement to address climate change Germany, France and the U.K. could restate the same goals 2.7 degree Celsius temperature increase COP21 UN climate change conference in Paris Germany, France and the U.K. ranges from 2.7 to 3.5 C 2.7 degree Celsius temperature increase the just-completed climate change accord several billion dollars a year calls 2.7 degree Celsius temperature increase Paris Agreement kind of sort of agreed the recent climate accord in Paris could restate the same goals