From the BBC:
Sir David’s new programme laid out the science behind climate change, the impact it is having right now and the steps that can be taken to fight it.
“In the 20 years since I first started talking about the impact of climate change on our world, conditions have changed far faster than I ever imagined,” Sir David stated in the film.
“It may sound frightening, but the scientific evidence is that if we have not taken dramatic action within the next decade, we could face irreversible damage to the natural world and the collapse of our societies.”
Speaking to a range of scientists, the programme highlighted that temperatures are rising quickly, with the world now around 1C warmer than before the industrial revolution.