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Methane leaks from three large U.S. natural gas fields in line with...

Wednesday, February 18, 2015

Methane leaks from three large U.S. natural gas fields in line with...

Tens of thousands of pounds of methane leak per hour from equipment in three major natural gas basins that span Texas, Louisiana, Arkansas and Pennsylvania, according to airborne measurements published today by a NOAA-led team of scientists. But the overall leak rate from those basins is only about one percent of gas production there—lower than leak rates measured in other gas fields, and in line with federal estimates.

Antarctic ozone hole similar to last year

Thursday, October 30, 2014

Antarctic ozone hole similar to last year

The Antarctic ozone hole, which forms annually in the August to October period, reached its peak size on September 11, stretching to 9.3 million square miles (24.1 million square kilometers), roughly the same size as last year’s peak of 9.3 million square miles (24 million square kilometers) on September 16, 2013. This is an area similar in size to North America.

New study explains wintertime ozone pollution in Utah oil and gas fields

Wednesday, October 01, 2014

New study explains wintertime ozone pollution in Utah oil and gas fields

Chemicals released into the air by oil and gas exploration, extraction and related activities can spark reactions that lead to high levels of ozone in wintertime, high enough to exceed federal health standards, according to new NOAA-led research, published online today in Nature.
Report: telltale signs that ozone layer is recovering

Wednesday, September 10, 2014

Report: telltale signs that ozone layer is recovering

Nearly 30 years after the protections of the Montreal Protocol were put into place, there’s more evidence that the international agreement to protect Earth’s ozone layer is working, according to a new scientific report released today at the United Nations headquarters in New York.

New global assessment examines air pollutants falling on the Earth’s...

Tuesday, April 15, 2014

New global assessment examines air pollutants falling on the Earth’s...

We sat down with Richard Artz, environmental scientist at NOAA’s Air Resources Laboratory, to learn more about the new global assessment of air pollutants that fall to the earth in precipitation and in dry form. The assessment is available online in the journal Atmospheric Environment.

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