The online lecture on climate change developed by WWF Germany and the German Climate Consortium (DKK) will be launched in English on October 1st. Participation in the course is free of charge; interested persons can register for the lecture here. Therein, more than 20 lecturers from the leading scientific institutions explain in six chapters how climate change is defined and give an overview of the state of the science. MARUM’s Dr. Ute Merkel and Prof. Dr. Michael Schulz are amongst the MOOC-lecturers.