According to the Copernicus global climate researchers we will exceed the 1.5°C target this year. More fossil fuels have been burned than ever, the forest loss is on a record high. Our oceans and marine systems are significantly warming and absorb less CO2. Do you know the legendary Vendée Globe, the toughest non-stop sailing race around the world? 40 boats were at the start this year. One is by the Malizia Team and solo-skipper Boris Hermann with his boat ‘seaexplorer’. He has a scientific device on board to measure ocean data and the CO2 in the air. This can help us to better understand the oceans as the largest carbon sink. The main question is, if oceans absorb less CO2 or even release it, how will global warming accelerate?