Simple, you just have to [You need to be a member of the FUK to view this answer] and that's how you destroy the Earth!

I could just kill you and then an alien invasion will come that can't be stopped on its own.

Then I'd come back from the dead and sucker punch dem aliens with my awesome fist of PWN! bestowed upon by the almighty Morgan Freeman

Well it depends on what you mean with "destroy it".

If you mean to eliminate all animals on the planet, WW III will get the job done.
If you mean to eradicate all living objects on earth then just wait 5 billion years until the sun runs out of Hydrogen.
If you mean to actually destroy the planet itself, then you will have to wait much longer.

Edited 1/20/2016 16:04:31

In the words of Sabaton, PREPARE FOR NUCLEAR ATTACK!

^
Which song?

Pakistan. India. 'Nuff said

^LOL

HUGE. ASS. LASERS.



Pretty straightforward, no?

launch a trident attack at america's nuclear bases. rip planet.