You may recall that a couple months ago the nations of the world met in Paris and agreed on a plan to fight climate change. The complex international treaty resulting from those talks includes targets for the governments to meet. But what about people?
Individuals can take tons of actions with the aim of trimming carbon footprints. But in order to prioritize these behaviors, we need some basis of comparison. How does replacing incandescent light bulbs compare to cutting the number of miles you drive?