Maybe:

https://www.coursera.org/course/globalwarming

This class describes the science of global warming and the forecast for humans’ impact on Earth’s climate. Intended for an audience without much scientific background but a healthy sense of curiosity, the class brings together insights and perspectives from physics, chemistry, biology, earth and atmospheric sciences, and even some economics—all based on a foundation of simple mathematics (algebra).

https://www.edx.org/course/natural-disasters-mcgillx-atoc185x#.VGvFufmsXao

This course examines the science behind different types of natural disasters and our ability or inability to control and predict such events.