Geoengineering our last hope?

Experts already fear that we will no longer be able to stop climate change in time because we are not prepared to change our behaviour - or at best react too slowly. Technical possibilities - so-called geoengineering - are therefore coming into play again and again as a solution. But what exactly is geoengineering?
In the lecture "Geoengineering our last hope?", the role of CO2 removal in climate protection scenarios will be examined and a critical look will be taken at the technical instruments currently under discussion.