The ancient Maya of Mexico , Guatemala , Belize and Honduras were close keepers of time . There are doomsday fears of Mayan apocalypse on December 21 . Mary Miller : The world will not come to an end , but we have pressing challenges . She says the Maya ##n crisis , including depletion of natural resources . Miller : We have to face our own challenges , such as global warming .
There are doomsday fears of Mayan apocalypse on December 21 . Mary Miller : The world will not come to an end , but we have pressing challenges . She says the Maya ##n crisis , including depletion of natural resources . Miller : We have to face our own challenges , such as global warming .