Consider the extremes of our present climate moment by the numbers. Recently, Michael Greenstone, the Milton Friedman professor of economics at the University of Chicago and the former chief economist of President Obama’s Council of Economic Advisers, did a little calculating. He was curious to find out just how much the planet’s temperature might rise... Read More

Don’t hold your breath, but future historians may look back on 2015 as the year that the renewable energy ascendancy began, the moment when the world started to move decisively away from its reliance on fossil fuels. Those fuels -- oil, natural gas, and coal -- will, of course, continue to dominate the energy landscape... Read More