Making Change

You may think that the best solution to cutting down on climate change is recycling or discouraging people from driving SUV’s, but Gernot Wagner argues that the only solutions to climate change are collective, economic decisions. We’ll take a look at Saturday’s South Carolina Primary and the tightening Republican race for President. A History of the World in 100 Objects continues with a look at a Mayan Maize God Statue. Plus, our latest Please Explain is the first in a series about saving the world, starting with a look at the world’s water supply.