By Bjørn Lomborg Activists including Greta Thunberg have shut down a key research project into geoengineering — a potentially game-changing technology — arguing that it could provide an excuse not to cut fossil fuels. We can’t afford to let climate science become politicised, says Bjorn Lomborg Climate studies are increasingly becoming politicised. Harvard University recently shut down a key geoengineering research project because of intense lobbying, despite the college’s aspiration to become “a global beacon on climate change.” Geoengineering is one way humanity could deal with the real prob…