Today, the Earth got a little hotter, and a little more crowded. California Gov. Jerry Brown signed a package of bills to promote more CA electric cars, while New York Mayor Bill de Blasio unveiled plans for $1 billion in energy retrofits for municipal buildings and pressuring landlords into reducing energy use.
The average American is responsible for about 21 tons of carbon emissions annually, according to the Union of Concerned Scientists. If every American cut those emissions by 20 percent over the next year, it would be the equivalent of shutting down a third of the nation's 600 coal-fired power plants.