Paris climate change agreement enters into force

Environment groups hail 'momentous occasion' but warn governments need to cut carbon emissions more steeply to avoid dangerous global warming The Paris agreement on climate change enters into force on Friday, marking the first time that governments have agreed legally binding limits to global temperature rises. The passage of the accord - the fruit of more than two decades of often tortuous international negotiations on combating climate change - was hailed by nations and observers around the wo...