Last night I watched the second half of the Nova show about the asteroid that killed the dinosaurs. At the end they tossed off a statistic that made me realize that the solution to global warming is as simple as having a 7 mile long asteroid hit the earth. Yes, that would create a different set of problems, like tsunamis all over the world and molten glass raining down everywhere setting most of the stuff on the planet's surface on fire, which would for sure be a bummer. But that asteroid also threw enough crap up into the atmosphere that scientists believe it took about 10 years for everything to clear and during that time the average temperature on earth fell a staggering 48 degrees Fahrenheit.