unleaded gasoline, Tag

Photo via Shutterstock Sometimes it seems like air transportation is the last to catch up with energy innovations. Busses, cars and trains regularly run on a variety of green options. But airplanes, with a few exceptions,...

At last, I've arrived. Michael Mann, inventor of the Hockey Stick, has written to the Wall Street Journal branding me a "denier" and a "contrarian" and "silly." These are badges of honour I shall wear with pride. The letter...