That the ocean slows down global warming by absorbing CO2 from the air, is pure chemistry. But to find out how much, you have to know how the ocean moves. Friederike Fröb's PhD shows that both weather and ocean currents play a role.
Sometimes things are so complicated that you're forced to think simple. Erwin Lambert is an expert at that. With a few, plain boxes he tries to calculate how a rainy future will influence Atlantic currents.