When they cut the sacred groves, the Mayans doomed their civilization. They were practicing good forestry management. “They were not allowed to cut down what we’re calling the ‘sacred groves. Then that changed," according to paleoethnobotanist David Lentz's new study."With no trees, you lose water retention in the soil or aquifers so the ground dries up and then there is less transpiration, so therefore less rainfall as well." Agriculture failed. Strangely, we seem to be on the same path today... Can no one stop rampant over-development? more inside