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1 August 2017
Threat to the ozone layer by future volcanic eruptions greater than previously thought
As the CFCs slowly degrade over the coming decades, so too should the volcano’s ozone-destroying power. However, new research shows that the volcanic risk to the ozone layer will persist for decades longer than previously believed.
25 January 2017
Weather patterns, trans-Pacific pollution cause spring ozone spikes in SW US
Late spring and early summer is when the air quality is generally good across most of the United States. But newly published research details how a common springtime weather pattern and pollution transported from Asia often conspire to create unhealthy ozone levels for the desert southwest. The new study adds to a growing body of work that explores how ozone can occasionally push some areas of the desert southwest above federal air quality standards.
19 September 2016
New study “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 system that has given scientists a minute-by-minute look at how quickly the sun can convert oil and gas emissions to harmful ground-level ozone.
8 August 2016
Study quantifies impact of oil and gas emissions on Denver’s ozone problem
The first peer-reviewed study to directly quantify how emissions from oil and gas activities influence summertime ozone pollution in the Colorado Front Range confirms that chemical vapors from oil and gas activities are a significant contributor to the region’s chronic ozone problem.
6 October 2015
Ozone destroyer drops mysteriously
By Larry O’Hanlon Something strange has happened to the atmospheric concentration of a newly discovered, human-made, ozone-destroying gas: it has suddenly dropped and nobody knows why. The gas, HCFC-133a, is a type of hydrochlorofluorocarbon, ozone-destroying compounds used in some industrial processes, including the manufacturing of refrigerants. The use of HCFCs, which are also powerful greenhouse gases, is restricted under the Montreal Protocol. A study last year first identified HCFC-133a as …
11 March 2013
Triple blow lowered arctic ozone in 2011
A combination of extreme cold temperatures, man-made chemicals and a stagnant atmosphere were behind what became known as the Arctic ozone hole of 2011, a new study finds.
GeoSpace is a blog on Earth and space science, managed by AGU’s Public Information staff. The blog features posts by AGU writers and guest contributors on all sorts of relevant science topics, but with a focus on new research and geo and space sciences-related stories that are currently in the news.