How to Destroy Earth

So, just surfing the web again and came across a recent Yahoo! article (the old link crapped out, so here's another link to an equivalent one) about how Africa and Arabia is drifting apart not merely by gradual small increments, but also by episodic tectonic rifts.... I'll forgo the details here.

Anyway, near the bottom of the page is a link to a page called Top Ten Ways to Destroy Earth. I was sufficiently intrigued and started reading. It was actually very funny! So, anyone who is interested in ways to annihilating mankind, wiping out the planet and all life on it, or just bored, check it out!