Activists protest at the power plant Datteln 4. "The World Weather Organization fears that 2020 will be one of the hottest years since measurements began and warns that the next hot summer will come. At the same time, Uniper is putting a gigantic CO2 centrifuge into operation with Datteln 4," says Lisa Goeldner, climate and energy expert from Greenpeace. Banner reads "How dare you".