Here's a most excellent video to illuminate my last blog post on the link between black carbon soot and the melting Arctic. How springtime burning of farm fields may account for 30 percent of Arctic warming to date. The good news: It's an easy 30 percent to fix. The video, from Earthjustice, tells us how in slightly more than 2 minutes. I'm impressed. We need more relevant videos with super clean message lines and good looks.