It seems that Genghis Khan was good for the environment. As you probably know, the old boy created the largest contiguous empire in human history, stretching from China to Europe. In the process, he killed upwards of 40 million people, piling their skulls in neat piles to intimidate his enemies.
Charming man, you say? Well, a new study by the Carnegie Institution’s Department of Global Energy finds that Genghis Khan was actually exceptionally green! Wiping out civilizations and laying waste to huge territory is good for the environment. Genghis evidently cleared 700m tons of carbon from the atmosphere—”roughly the quantity of carbon dioxide generated in a year through global petrol (gas) consumption.”
Despite his impressive success, we’re going to walk way out on a limb and suggest that the Genghis strategy will not make it into very many Environmental Studies how-to guides and that Al Gore will not recommend it in his follow-up to An Inconvenient Truth.