One for all you budding evil geniuses out there

So you've got your jumpsuited minions, island base and a nice white cat but what uber baddie is complete without a fool-proof plan to destroy the Earth? Well if you're struggling to find a diabolic scheme, fear not, some irresponsible geek has done all the legwork for you: Ways to destroy the Earth.

Right you'll have to excuse me, I'm just off to build a Von Neumann machine.