Humans spontaneously combusting due to climate change, answer an age old mystery.
What habbened to the dinosaurs.
Obviously dinosaurs were using too many plastic bags and not washing out their little plastic yogurt pots.
This raised the temperature of the planet causing them all to explode.
If only they had done moar recycling, or at least offset their carbon footprint with some faceless regulatory body, they would all still be here
Stupid dinosaurs.