World has three years left to stop dangerous climate change, warn experts

Former UN climate chief Christiana Figueres among signatories of letter warning that the next three years will be crucial to stopping the worst effects of global warmingAvoiding dangerous levels of climate change is still just about possible, but will require unprecedented effort and coordination from governments, businesses, citizens and scientists in the next three years, a group of prominent experts has warned. Warnings over global warming have picked up pace in recent months, even as the pol