It is a glimmer of hope that is often overlooked in the climate crisis: Much of the energy and mobility transition technology already exists – and is constantly improving. Countries do not have to wait for e-fuels, mini-nuclear power plants or nuclear fusion to rapidly cut emissions. Solar and wind power are experiencing an enormous boom worldwide. Photovoltaic systems are becoming increasingly efficient, wind turbines are getting bigger and bigger, batteries can store more and more energy – technical progress has led to enormous cost reductions.