After a recent case involving hundreds of falsified reports, New York City officials have increased oversight.

After a recent case involving hundreds of falsified reports, the city says it is conducting more audits, spot checks and installing a computerized filing system.

Emissions from Duke Energy’s 560-megawatt Gallagher Station in Indiana blow eastward and bring smog and soot to areas like the Adirondacks.

A study of street-level airborne pollution has found that the Upper East Side, which has some of the country’s richest ZIP codes, is home to some of the dirtiest air in the five boroughs.

Gov. David A. Paterson proposed moving $90 million from the Regional Greenhouse Gas Initiative to help close New York’s nearly $50 billion deficit.

In Linden, N.J., environmentalists must decide whether to support unproven technology that combats climate change or fight everything that comes down the Turnpike.

To keep their place pristine, Benjamin Noriega-Ortiz, above, and his partner usually wear shorts and T-shirts at home.New York City’s dirt level — a mix of soot and everything from ground-up car tires to sea salt — is high, and so homeowners who love white rugs and sofas pay a higher price. Call it the dirt tax.

To keep their place pristine, Benjamin Noriega-Ortiz, above, and his partner usually wear shorts and T-shirts at home.New York City’s dirt level — a mix of soot and everything from ground-up car tires to sea salt — is high, and so homeowners who love white rugs and sofas pay a higher price. Call it the dirt tax.

A geothermal energy plan to reduce annual carbon dioxide emissions has been continually delayed by a four-year siege of red tape.

A geothermal energy plan to reduce annual carbon dioxide emissions has been continually delayed by a four-year siege of red tape.