Warming due to carbon dioxide jumped by half in 25 years
May 18, 2016

Warming due to carbon dioxide jumped by half in 25 years

Human activity has increased the direct warming effect of carbon dioxide (CO2) in the atmosphere by 50 percent above pre-industrial levels during the past 25 years, according to NOAA's 10th Annual Greenhouse Gas Index .
Last light: Sunset at the South Pole
March 20, 2016

Last light: Sunset at the South Pole

In the Northern Hemisphere, the spring equinox promises warmer days and green plants. But for researchers at NOAA's South Pole Atmospheric Baseline Observatory, Sunday March 20 marks the start of the austral autumn, the last time they see the sun for six months.
Record annual increase of carbon dioxide observed at Mauna Loa for 2015
March 10, 2016

Record annual increase of carbon dioxide observed at Mauna Loa for 2015

The annual growth rate of atmospheric carbon dioxide measured at NOAA’s Mauna Loa Observatory in Hawaii jumped by 3.05 parts per million during 2015, the largest year-to-year increase in 56 years of research.
When Less Is More
March 1, 2016

When Less Is More

Carbon tetrachloride (CCl4) was once commonly used as a cleaning agent and remains an important compound in the chemical industry. As a result, production across the globe has been banned for uses that result in CCl4 escaping to the atmosphere. A new study, led by CIRES scientist Lei Hu and NOAA scientist Stephen Montzka of NOAA ESRL's Global Monitoring Division, reports that release rates are still 30 to 100 times higher than amounts reported to emission inventories.
New Methane Global Trends Web Page
February 5, 2016

New Methane Global Trends Web Page

NOAA/ESRL's Global Monitoring Division has introduced a 'Trends in Atmospheric Methane' web page. Similar to the existing 'Trends in Carbon Dioxide' web page, it displays graphs and data for the most recent globally averaged CH4 data.
Ann Thorne Named NOAA Research Employee of the Year
December 9, 2015

Ann Thorne Named NOAA Research Employee of the Year

Ann Thorne of the Global Monitoring Division received the NOAA Research Employee of the Year Award "For exceptional service to NOAA's Global Monitoring Division and Earth System Research Laboratory, and an unsurpassed spirit and dedication to the NOAA Boulder Student Program."
2015 Sets a Record Low for Antarctic Ozone Hole in October
November 20, 2015

2015 Sets a Record Low for Antarctic Ozone Hole in October

NOAA’s measurements of ozone at South Pole registered a record low for the month of October. This year, the average amount of ozone measured by a Dobson instrument at South Pole in the second half of October was 114 Dobson Units (DU), or 60 percent below the pre-ozone hole conditions.
Annual Antarctic Ozone Hole Larger and Formed Later in 2015
October 29, 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.
NBC News video on the warming arctic and Barrow, Alaska
September 17, 2015

NBC News video on the warming arctic and Barrow, Alaska

NBC News aired a news story about the affect that the warming arctic has on the people of Barrow, Alaska. Included in the video is an interview with the Barrow NOAA observatory station chief Marty Martinsen. See the video here.
Scientists find Southern Ocean removing CO2 from the atmosphere more efficiently
September 10, 2015

Scientists find Southern Ocean removing CO2 from the atmosphere more efficiently

Since 2002, the Southern Ocean has been removing more of the greenhouse gas carbon dioxide (CO2) from the atmosphere, according to two new studies. These studies make use of millions of ship-based observations and a variety of data analysis techniques to conclude that the Southern Ocean has increasingly taken up more CO2 during the last 13 years.
Recording climate change from the top of the world
August 31, 2015

Recording climate change from the top of the world

Spring came early this year, breaking several records at the top of the world in Barrow, Alaska, according to a new report that combines observations from NOAA, the North Slope Borough and a scientist who has tracked an Arctic bird for the last four decades.
Congratulations to recent ESRL award winners
July 29, 2015

Congratulations to recent ESRL award winners

John A. Ogren, Patrick J. Sheridan and James W. Wendell of the Aerosol group in the ESRL Global Monitoring Division won the 2015 NOAA Technology Transfer Award, which recognizes achievements that are developed further as commercial applications, or that advance the transfer of NOAA science and technology to U.S. businesses, academia, other government and non-government entities.
Measuring methane loss in Texas
July 16, 2015

Measuring methane loss in Texas' Barnett Shale

About 170,000 pounds (76,000 kg) of the greenhouse gas methane leak per hour from the Barnett Shale region of Texas, including the urban areas of Dallas and Fort Worth, according to a new study led by NOAA/ESRL and Cooperative Institute for Research in Environmental Sciences (CIRES) researchers.
Bottled air from all over the world tells story of ozone-depleting gases and their connection to climate change
May 18, 2015

Bottled air from all over the world tells story of ozone-depleting gases and their connection to climate change

If you’re like me, when you hear the word “flask,” you’re likely to picture a grizzled, trail-weary cowboy gulping down a mouthful of whiskey from a tarnished, dented tin. But say “flask” to atmospheric chemist Steve Montzka, and he sees something more like a fire extinguisher or a stainless steel, two-liter soda bottle.
Recent adjustments to the Montreal Protocol help protect ozone layer, but newer chemicals contribute to warming
May 14, 2015

Recent adjustments to the Montreal Protocol help protect ozone layer, but newer chemicals contribute to warming

An international agreement in 2007 to deal with the last remaining ozone-depleting chemicals used in large quantities is working, according to a new analysis published today. Atmospheric emissions of those chemicals, called hydrochlorofluorocarbons (HCFCs) and used in refrigeration and air conditioning, are no longer increasing, after having increased consistently over the past few decades, according to NOAA measurements published in the Journal of Physical Chemistry