One of Earth’s tens of millions of species has been mining colossal volumes of organic matter buried for ages — energy-rich liquids and gases that would have been buried for aeons still — and burning the stuff for fuel! Their garbage dumps have been seeping vast volumes of earth-warming methane. Bottom line: the creatures have managed to raise the surface temperature of their planet to a level higher than any time in the past hundred thousand years! Whether human beings can pull out of their nose dive is anyone’s guess.