"...Over the past couple of years, the number of monarch butterflies that reach the Mexican sanctuaries has been declining, generating concern among rural communities that rely on spillovers of butterfly tourism activities, as well as entomologists, biologists, ecologists and monarch aficionados around the world. ..."

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"Little more than a year after making it to the top of IBM's list of worst commuter cities, Mexico City has returned to the urban transit spotlight -- this time at the receiving end of international praise."

"MEXICO CITY -- A gas buildup under a building in the headquarters of Mexico's state oil company caused a blast that killed 37 people and wounded dozens, the attorney-general said Monday, ending days of near-total silence by authorities about the petroleum giant's worst disaster in more than a decade."

"MEXICO CITY -- An explosion rocked the headquarters of Mexico's state-run oil monopoly Pemex, killing 25 people, injuring 101, and damaging three floors of Mexico's second tallest building before sending plumes of smoke into the Mexico City skyline."

"The megacity's water shortage could be eased by an aquifer a mile under the surface of Iztapalapa, a neighborhood whose terrible water quality is the butt of local jokes."

"Bicycles, pedestrian-friendly plazas and walkways, new bus lines, and parking meters are combining to transform parts of Mexico City from a traffic nightmare to a commuter's paradise. The Mexican capital, one of the world's most populated urban areas, has captured this year's Sustainable Transport Award, the Institute for Transportation and Development Policy (ITDP) announced Tuesday."

"Every day, 50 to 60 broken water pipes are repaired in this megacity of over 20 million residents. Sometimes that means a surprise loss of water for Mexico City residents."

"The U.S. government's proposal to use the canal to deliver water to Mexico doesn't sit well with farmers and officials in the Imperial Valley."

"A top Mexican government official said Thursday that the long-awaited but highly controversial approval of genetically modified (GM) corn fields on a commercial scale will drag into next year."

"Water agencies in Southern California, Arizona and Nevada will buy nearly 100,000 acre-feet of water from Mexico's share of the Colorado River for nearly $10 million."

"TEMACAPULÍN, Mexico -- "'What do we stand to lose because of the dam? We will lose everything!' said Maria Abigail Agredani, a member of the committee for this indigenous community in the western Mexican state of Jalisco, reporting the damage that will be caused by the hydroelectric complex being built nearby."

"Climate change contributed to a fivefold increase in weather-related natural disasters in North America over the past three decades, according to Munich Re, the world’s biggest reinsurer."

"The salamander, long a metaphor for the Mexican soul, risks extinction unless its sole habitat, the canal system of Xochimilco, can be restored."

"MEXICO CITY -- Water-rights activists on Tuesday questioned the theory of Mexican state prosecutors that the killing of a state legislator-elect this month was orchestrated by his designated substitute."

"At least 26 people were killed and as many injured when a Pemex gas facility burst into flames in northern Mexico on Tuesday, one of the worst accidents to hit the state oil monopoly in recent years."