Hey! All you people out there claiming that global warming doesn't exist! You better shut your mouth right now. You're upsetting Brooke Shields. And no one upsets Brooke Shields on my watch. Nobody!
After all, science has proven that we're doomed and chances are that the cause will be something we started. Because we're stupid. Each and every last one of us. Sure, we may be trying to contact alien lifeforms using open source code, but don't get cozy and expect to meet a being from beyond the stars anytime soon. When the aliens arrive to ravage our planet and steal our resources in a spot-on re-enactment of Independence Day, we'll all be long gone, boiled to death under our own ozone layer.
How exactly are we the cause of our own terrible demise? Let's take a quick look at a few examples.