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Antarctic ozone hole similar to last year

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.

October 30, 2014 0 Comments
New study explains wintertime ozone pollution in Utah oil and gas fields

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.
October 1, 2014 0 Comments
Report: telltale signs that ozone layer is recovering

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.

September 10, 2014 0 Comments
New global assessment examines air pollutants falling on the Earth’s surface

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

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.

April 15, 2014 0 Comments
New study: U.S. power plant emissions down

New study: U.S. power plant emissions down

Power plants that use natural gas and a new technology to squeeze more energy from the fuel release far less of the greenhouse gas carbon dioxide than coal-fired power plants do, according to a new analysis accepted for publication Jan. 8 in the journal Earth’s Future, a journal of the American Geophysical Union. The so-called “combined cycle” natural gas power plants also release significantly less nitrogen oxides and sulfur dioxide, which can worsen air quality.
January 9, 2014 0 Comments
CIRES, NOAA observe significant methane leaks in a Utah natural gas field

CIRES, NOAA observe significant methane leaks in a Utah natural gas field

On a perfect winter day in Utah’s Uintah County in 2012, CIRES scientists and NOAA colleagues tested out a new way to measure methane emissions from a natural gas production field. Their results, accepted for publication in Geophysical Research Letters, constitute a proof-of-concept that could help both researchers and regulators better determine how much of the greenhouse gas and other air pollutants leak from oil and gas fields. 
August 7, 2013 0 Comments
Scientists working to crack key air quality and climate mysteries in U.S. Southeast

Scientists working to crack key air quality and climate mysteries in U.S. Southeast

Scientists this summer are taking one of the most detailed looks ever at the natural and manmade emissions that affect air quality in the Southeast, and their movement and chemical transformations within the atmosphere. The mission should help scientists determine the origin of the fine particles and how they contribute to the haziness in the region and affect regional air quality and temperature trends.

June 19, 2013 0 Comments
Los Angeles air pollution declining, losing its sting

Los Angeles air pollution declining, losing its sting

The cleanup of California’s tailpipe emissions over the last few decades has not only reduced ozone pollution in the Los Angeles area, it has also altered the pollution chemistry in the atmosphere, making the eye-stinging “organic nitrate” component of air pollution plummet, according to a new study.

June 4, 2013 0 Comments
Mystery solved: "Extra” methane in LA's air traced to fossil-fuel sources

Mystery solved: "Extra” methane in LA's air traced to fossil-fuel sources

A new study, led by NOAA and its Cooperative Institute for Research in Environmental Sciences at the University of Colorado Boulder, used a novel approach to trace methane in the Los Angeles basin back to its sources, and found that "extra" methane is likely coming from sources related to fossil fuels.

May 14, 2013 0 Comments
Saharan and Asian dust, biological particles end global journey in California

Saharan and Asian dust, biological particles end global journey in California

A field study of aerosol impacts on clouds and precipitation in the Sierra Nevada mountains shows that dust and microorganisms transported from as far away as the Sahara desert help to spur the precipitation that California counts on for its water supply.
February 28, 2013 0 Comments
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Oceanic and Atmospheric Research (OAR) - or "NOAA Research" - provides the research foundation for understanding the complex systems that support our planet. Working in partnership with other organizational units of the NOAA, a bureau of the Department of Commerce, NOAA Research enables better forecasts, earlier warnings for natural disasters, and a greater understanding of the Earth. Our role is to provide unbiased science to better manage the environment, nationally, and globally.

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