Those fuckers.....

I'm betting it was the lack of government regulations. What do you think?
Maybe Oba mama can go back and do something about it. As long as he doesn't come back (lol)

Take Congress with you, buddy.

Unexplained Mysteries - Woolly mammoth hunters helped change climate

The demise of the leaf-chomping woolly mammoths contributed to a proliferation of dwarf birch trees in and around the Arctic, darkening a largely barren, reflective landscape and accelerating a rise in temperatures across the polar north, researchers at the Carnegie Institution for Science concluded.

Ancient human-caused warming was tiny compared to modern-day warming, in which the Earth's temperature has risen about 0. 74 degrees Celsius (1. 33 degrees F) since the start of the 20th century.