Mexico City's infamous smog clears, a little
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Heavy trucks belch black smoke and lines of buses battle through a virtually gridlocked sea of cars inching beneath a haze of exhaust fumes.
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Mexico's state-owned oil company Pemex was shutting down about one-fifth of its daily output on Sunday due to bad weather, but said it expects to quickly resume output within days.
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ARVIN, Calif. -- This small farming community at the southern end of the San Joaquin Valley has a distinction that often brings tears to the eyes of its residents. It is the smoggiest place in the United States.
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The Mexican cement producer is bringing sexy back.
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On the 50th anniversary of Diego Rivera's death, Mexico City is in the midst of a series of exhibitions celebrating his work.
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Mexico's state-owned oil company  Pemex was shutting down about one-fifth of its daily output on  Sunday due to bad weather, but said it expects to quickly  resume output within days.
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MEXICO CITY, Nov. 24 - This city seemed in a state of shock on Wednesday as people struggled to come to grips with the scenes of lawlessness captured on television as an angry mob lynched two police officers
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There was a wet start to jolt the American senses, but it proved harmless.
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The area near Wednesdayâs steam pipe explosion regained a bit of its bustle Saturday, as city officials reopened some streets and cleanup continued.
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By Tony Davis, The Arizona Daily Star, Tucson  Jun. 22--Pima County's air could be out of compliance with federal limits  in a few years because of a new federal proposal to tighten up regulations  protecting the air from the primary ingredient in smog.
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Fog is set to make driving hazardous, but mostly it has been a good start for travellers
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The Environmental Protection Agency finally updates how it estimates vehicles' fuel economy -- all vehicles will lose at least a few estimated mpg. In Autopia.
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An increase in smog sparks a small but measurable increase in deaths, scientists report today in a study showing the strongest link yet between smog and damage to health.
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For all its outdoor splendor and fit residents, Colorado is suffering through a summer of smog.
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The operators of six coal-burning power plants in upstate New York have agreed to significantly reduce emissions that cause smog and acid rain.
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Favorable weather and stricter standards help give the Los Angeles area its cleanest air in 25 years. While the region&#39;s air quality remained the worst in the nation, it was cleaner
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Mexicans began cleaning up on  Sunday the wreckage left by Hurricane Lane, which killed two  people and knocked down flimsy homes before it slowed into a  tropical depression.