One evening a man called James was on the road from Oxford to London. There weren’t many cars on the road because it was late. Suddenly in the lights of his car he saw a woman by the road – she was quite young and very pretty. ‘It’s dangerous to walk along the road when it’s dark and late,’ he thought. He stopped, opened the window and asked the young woman, ‘Where are you going? It’s dangerous to stand here at night… perhaps I can take you to London with me.’ The young woman didn’t answer but she opened the door of the car and got in...

PART I This narrative by Nathaniel Rich is a work of history, addressing the 10-year period from 1979 to 1989: the decisive decade when humankind first came to a broad understanding of the causes and dangers of climate change. Complementing the text is a series of aerial photographs and videos, all shot over the past year by George Steinmetz. With support from the Pulitzer Center, this two-part article is based on 18 months of reporting and well over a hundred interviews. It tracks the efforts of...