"Climate change is happening, and happening fast." Climate Change – The Facts, with David Attenborough. Coming to BBC One on the 18th of April at 9pm. | BBC

Meet Greta Thunberg, the Swedish schoolgirl who has inspired an international movement to fight climate change. #ClimateChangeTheFacts | BBC

"The climate crisis has already been solved. We already have all the facts and solutions. All we have to do is to wake up and change." Watch Greta Thunberg's full talk here: http://t.ted.com/vioA1Po | TED