It is important to note that when Yellowstone erupts, it won’t pop like a pimple, Mt. Saint Helens style. A Yellowstone eruption will likely be lava coming to the surface. It is still devastating, and it will destroy the natural habitat and likely kill most animals that refuge there, but it won’t kill the planet.

EDIT: You still want that beer though. An eruption might affect hops production in places like Idaho.