Today, we are focusing on a different kind of climate finance: Instead of the usual aid for climate action and adaptation, we look at a billionaire tax for the super-rich, for example. It has been discussed for a long time, and now the Brazilian G20 presidency has presented the first details – with some surprises. Equally uncertain is the future of the German carbon price for heating and transport and how it can be integrated into EU emissions trading. The plans for this should be available now, but they are not. Infringement proceedings are looming – and price shocks. We take a look at the consequences and possible solutions.