Björn Lomborg: Europe's sceptical environmentalist

NEW YORK – When politicians around the world tell the story of global warming, they cast it as humanity’s greatest challenge. But they also promise that it is a challenge that they can meet at low cost, while improving the world in countless other ways. We now know that is nonsense.

This Earth Day, dramatic warnings about climate change will be ubiquitous. At his climate summit, U.S. President Joe Biden will undoubtedly repeat that global warming presents an “existential threat.”