Are you worried about the end of life as we know it? Then don't just look to the sky for that catastrophic asteroid that could be heading our way. The end may come from right beneath your feet.
Super-volcanoes have probably caused more extinctions than asteroids. But until now it has been thought that these giant volcanoes took thousands of years to form -- and would remain trapped beneath the earth's crust for thousands more years -- before having much effect on the planet.
But new...Full Story