Wednesday, November 22, 2017
 
Earth is breathing deeper: Multi-agency study reveals widening seasonal swings in CO2 in the Northern Hemisphere

Monday, August 12, 2013

Earth is breathing deeper: Multi-agency study reveals widening seasonal swings in CO2 in the Northern Hemisphere

Levels of carbon dioxide in the atmosphere rise and fall annually as plants take up the gas in spring and summer and release it in fall and winter through photosynthesis and respiration. Now the range of that cycle is growing as more CO2 is emitted from the burning of fossil fuels and other human activities, according to a study published in Science by Scripps Institution of Oceanography, UC San Diego, with CIRES and NOAA co-authors.
Greenhouse gases continue climbing; 2012 a record year

Thursday, August 1, 2013

Greenhouse gases continue climbing; 2012 a record year

NOAA’s updated Annual Greenhouse Gas Index (AGGI), which measures the direct climate influence of many heat-trapping gases like carbon dioxide and methane, shows 2012 continued the steady upward trend that began with the Industrial Revolution of the 1880s.  Last year, CO2 at the peak of its cycle reached 400 ppm for one month at all eight Arctic sites for the first time.
Introducing EMILY and other innovations to improve hurricane forecasts

Thursday, May 17, 2012

Introducing EMILY and other innovations to improve hurricane forecasts

2012 Hurricane Research News Briefs

NOAA researchers will be using several innovative tools, techniques, and research results during the 2012 hurricane season to continue to improve hurricane forecasting. Read our 2012 hurricane research news briefs to learn more.

Los Angeles air pollution declining, losing its sting

Tuesday, June 4, 2013

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.

Methane from the sea

Friday, April 27, 2012

Methane from the sea

Researchers find elevated levels of the greenhouse gas above cracks in Arctic sea ice

The potent greenhouse gas methane is seeping out of parts of the Arctic Ocean, and the discovery may represent another cycle contributing to climate warming in the region.

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