EarthTemple timbers trace collapse of Mayan culture Timber use in an abandoned city provides first direct evidence that the Mayans ran out of wood as they overexploited the environment 51¶¯Âþ
EarthOil road turns tribes into meat traders A new road and free bus rides for Amazonian tribes have created a bushmeat trade that previously did not exist, say conservationists 51¶¯Âþ