US firms to trade greenhouse gases
This is something I’ve long heard proposed as a libertarian solution to environmental problems, but I had no idea anyone was actually attempting it. It looks, though, like these kinds of things have been around for a long time, at least in some form. The only piece I don’t understand is that the article states that this is a way to cut emissions without government intervention, but who decides what the total number of permitted emissions is? The CCX?