"For 100 years, Mexico City has flushed its wastewater north to irrigate the farmland of Hidalgo State. This foul cascade, which the farmers call 'the black waters,' flows through a latticework of canals and then trickles over the fields. So when word got out that the government was finally going to build a giant wastewater treatment plant, one might have expected the farmers around here to be excited. Instead, they were suspicious."

"MEXICO CITY -- This megalopolis once had the world's worst air, with skies so poisonous that birds dropped dead in flight. Today, efforts to clean the smog are showing visible progress, revealing stunning views of snow-capped volcanoes -- and offering a model for the developing world."

They call it "wolf jail." Efforts to reintroduce the Mexican gray wolf to a New Mexico border area depend on whether the wolves play by the rules.

"The national oil company created after the 1938 seizure, Pemex, is entering a period of turmoil. Oil production in its aging fields is sagging so rapidly that Mexico, long one of the world's top oil-exporting countries, could begin importing oil within the decade."

"Activists in Mexico complain that the deforestation threatening the environmental health of Mexico has been accentuated by the granting of public areas to private companies."

A Univ. of Florida researcher has found that endocrine-disrupting agricultural pesticides have harmed the health of Yaqui people in Mexico. Among the effects: girls developing breasts that lack mammary tissue needed to produce milk.

"Capping a decade-long battle, private companies in Mexico have begun the first legal plantings of genetically modified corn, the Agriculture Department said Wednesday."

"The ancient waterways upon which the Aztec Empire was built are now a fraction of their former glory. ... Hidden underneath the murky water, sharing space with discarded soda cans and empty potato-chip bags, an ageless 'water monster' called the axolotl, a central figure in Aztec legend and a protein-rich part of the diet then, is also vanishing."