The holy grail of solving climate change, according  to climate scientists like Jim Hansen, is shutting down coal plants. That’s easier said than done, of course, because each year we run these old, dirty civilization destroyers gives us anoother year of cheap power. But Colorado, showing world leadership, is actually working on closing plants. In fact the Public Utilties Comission might even close the deal this morning. Here’s Colorado Conservation Voters’ Pete Maysmith on killing king coal.