The Mayan rain god Chac
Droughts do far worse than brown our lawns---the water shortages and crop damage
they mete out, and the fires fed by dry conditions
, have effects that last long after rain returns. These events may even have civilization-destroying powers: although doubts remain
, many researchers consider drought one of the leading contributors
to the collapse of the Maya. And a new study published in Geophysical Research Letters
finds that by cutting down forests, Mayans may have directly contributed to the droughts that brought about the downfall of their society. Like modern civilizations, Mayans felled trees in order to harvest the raw material and clear land for cities and crops. Researchers modeled how this deforestation affected local climate conditions with computer simulations. Cleared land absorbs less solar energy, which means it releases less moisture to contribute to rainfall. By comparing untampered or regrown forest to reconstructions ...
