One of my senator’s, Ed Markey, has his share of climate bona fides. He was the author, when he was in Congress, of the Waxman-Markey bill, otherwise known as the American Clean Energy and Security Act of 2009. Among other things, that bill proposed a cap-and-trade system for greenhouse gas emissions — putting a price on carbon. It passed the passed the House but was never brought up by the Senate. Today, I listened in a talk that Senator Markey gave to the MIT Environmental Solutions Initiative. (I intended to attend, but got tied up so I listed to the live stream instead.) Does he have any new ideas to bring forward? Watch the talk and Q&A, and decide for yourself: https://environmentalsolutions.mit.edu/events/.