WATCH: The direct causes of the civil war in Syria relate to popular discontent with the government. Yet the mishandling of a major drought in the preceding...
WATCH: In this interview, European Space Agency astronaut André Kuipers gives perspectives on environmental degradation and climate change as seen from space.
WATCH: Unconventional gas provides a rapidly increasing new source of energy for the U.S. But what are the geopolitical implications of the U.S. ‘shale gas...