The Start Of Everything

All of the Worldending storys are full with zombies, viruses, or just super unnatural people. A war which caused to much damage, or some really evil thing, which ended pretty much lives.

But what if the end will be just the death of the earth? And the cause is only us, poor people who didn't care enough, and killed the planet, poison all of the animals and plants. The most of us died in hunger, and who is still alive have to face that nothing is the same as it was.