Via the German blog Globale Umweltpolitik by Nils Simon I discovered an Online Course about Climate Change on Learning Space. The course is estimated to take 18 hours, and teaches about the fundamentals of climate science. It explains for example the energy budget of the earth, radiative forcing, and also talks about the history of scientific understanding of climate change. Nils also points to another course called global warming which is estimated to take 5 hours. I first thought this is an easier version of the other one, but in fact they seem to be complementary.