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Ozone hole modest despite conditions ripe for depletion

Ozone hole modest despite conditions ripe for depletion

Weather conditions were ripe for a big ozone hole this year. But declining levels of ozone-depleting chemicals kept it to near-average size.

November 2, 2018 0 Comments
Emissions of ozone-destroying chemical controlled by Montreal Protocol rising again, NOAA data shows

Emissions of ozone-destroying chemical controlled by Montreal Protocol rising again, NOAA data shows

Emissions of one of the chemicals most responsible for the Antarctic ozone hole are on the rise, despite an international treaty that required an end to its production in 2010, a new NOAA study shows.

May 17, 2018 0 Comments
Possible new threat to Earth’s ozone layer

Possible new threat to Earth’s ozone layer

The Montreal Protocol has been hailed for controlling chlorine-based chemicals that created a vast hole in the ozone layer over Antarctica. But new research by British and American scientists suggest a chemical not controlled by the international treaty poses a potential risk to the Earth’s protective ozone layer.
June 30, 2017 0 Comments
Rural West sees more smog; now scientists may know why

Rural West sees more smog; now scientists may know why

Ground-level ozone, also known as smog, has climbed in the rural West over the past 25 years, even in such seemingly pristine places as Yellowstone National Park. Now, scientists may have found out why – and why cutting our own output of smog-forming chemicals such as nitrogen oxide hasn’t helped.
March 1, 2017 0 Comments
NOAA “reels in” data on Utah’s winter ozone problem

NOAA “reels in” data on Utah’s winter ozone problem

A deep sea fishing rod is probably not the first tool that comes to mind when thinking about how to study air pollution in a remote inland desert, but it’s the heart of a new NOAA system that has given scientists a minute-by-minute look at how quickly the sun can convert oil and gas facility emissions to harmful ground-level ozone.

September 19, 2016 0 Comments
Accounting for Denver’s Ozone

Accounting for Denver’s Ozone

The first peer-reviewed study to quantify oil and gas emissions on Colorado's northern Front Range confirms that energy development is an important contributor to the region’s chronic ozone problem. The NOAA-CIRES research was published August 8 in the Journal of Geophysical Research: Atmospheres

August 9, 2016 0 Comments
HFC greenhouse gases: a tale of two (or more) futures

HFC greenhouse gases: a tale of two (or more) futures

new paper appearing online in Atmospheric Environment  coauthored by researchers at NOAA’s Earth System Research Laboratory looked at the climate implications of various proposals for future HFC use that are being discussed this week under the United Nations Montreal Protocol, the global agreement that protects the ozone layer. 
November 3, 2015 0 Comments
Annual Antarctic ozone hole larger and formed later in 2015

Annual Antarctic ozone hole larger and formed later in 2015

The 2015 Antarctic ozone hole area was larger and formed later than in recent years, according to scientists from NOAA and NASA.

On Oct. 2, 2015, the ozone hole expanded to its peak of 28.2 million square kilometers (10.9 million square miles), an area larger than the continent of North America. Throughout October, the hole remained large and set many area daily records.

October 29, 2015 0 Comments
Stratosphere an Accomplice for Santa Ana Winds and California Wildfires

Stratosphere an Accomplice for Santa Ana Winds and California Wildfires

The hot and dry Santa Ana winds are associated with many of Southern California’s destructive wildfires, and even take the blame for tense, ugly moods. Now, NOAA researchers have found that on occasion the winds have an accomplice in contributing to California’s wildfires: atmospheric events known as stratospheric intrusions, which bring extremely dry air from the upper atmosphere down to the surface.

July 8, 2015 0 Comments
New research will help forecast bad ozone days over the western U.S.

New research will help forecast bad ozone days over the western U.S.

New research published in Nature Communications led by Meiyun Lin of NOAA’s Geophysical Fluid Dynamics Laboratory and NOAA’s cooperative institute at Princeton University, reveals a strong connection between high ozone days in the western U.S. during late spring and La Niña, an ocean-atmosphere phenomena that affects global weather patterns.
May 12, 2015 0 Comments
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The Office of 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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