MADRID (Reuters) - The world's richest nations are failing to "behave like adults" and act firmly enough to meet global warming targets set in the Paris climate accord, former U.S. Secretary of State John Kerry said on Tuesday.
Kerry, who served as the top U.S. diplomat under President Barack Obama and was a leading player in brokering the Paris Agreement in 2015, said the G20 nations are lagging behind on emission reduction plans and financial pledges to poor countries instead of setting a high bar for global climate action.