July 24, 2023

50th anniversary of CO2 measurements at NOAA’s Barrow Observatory

July 24, 2023 marked the 50th anniversary of continuous measurements of CO2 in the atmosphere at the Barrow, Alaska Atmospheric Baseline Observatory.
June 5, 2023

Broken record: Atmospheric carbon dioxide levels jump again

Carbon dioxide levels measured at NOAA’s Mauna Loa Atmospheric Baseline Observatory peaked at 424 parts per million in May, continuing a steady climb further into territory not seen for millions of years, scientists from NOAA and Scripps Institution of Oceanography offsite link at the University of California San Diego announced today.
May 23, 2023

NOAA index tracks how greenhouse gas pollution amplified global warming in 2022

Greenhouse gas pollution from human activity trapped 49 percent more heat in the atmosphere during 2022 than those same gases did in 1990, according to an annual NOAA report. NOAA’s Annual Greenhouse Gas Index, known as the AGGI, tracks increases in the warming influence of heat-trapping gases generated by human activity.
April 16, 2023

#EarthDay: Invest in our changing planet now to secure a more livable future

Since the first Earth Day, billions across the globe have invested their time, creativity and energy to honor and nurture our home planet. In the decades since April 22, 1970, however, global climate change has had an alarming effect on Earth and its inhabitants. So how is NOAA addressing climate change and other environmental challenges?
April 5, 2023

Greenhouse gases continued to increase rapidly in 2022

Levels of carbon dioxide (CO2), methane and nitrous oxide, the three greenhouse gases emitted by human activity that are the most significant contributors to climate change, continued their historically high rates of growth in the atmosphere during 2022, according to NOAA scientists.
March 23, 2023

Celebrating Women's History Month 2023 with Aleya Kaushik

To celebrate Women’s History Month, we asked women throughout NOAA Research to share how their work contributes to NOAA’s mission of preparing for a Climate-Ready Nation. This article highlights an interview with Aleya Kaushik, a CIRES research scientist working in the Carbon Cycle Greenhouse Gases group at NOAA’s Global Monitoring Laboratory.
March 7, 2023

Potent greenhouse gas declines in the US, confirming success of control efforts

A new NOAA analysis shows U.S. emissions of the super-potent greenhouse gas sulfur hexafluoride (SF6) have declined between 2007-2018, likely due to successful mitigation efforts by the Environmental Protection Agency (EPA) and the electric power industry.
January 9, 2023

GML highlights at the AMS 2023 Annual Meeting

GML and CIRES researchers are presenting several talks and posters, and collaborating on others, at the 2023 Annual Meeting of the American Meteorological Society.
December 19, 2022

University of Hawaii, NOAA to gather climate change data following Mauna Loa eruption

NOAA will partner with the University of Hawaii (UH) to collect atmospheric measurements at the Mauna Kea Observatories on the Big Island of Hawaii.
December 6, 2022

GML highlights at AGU 2022 Fall Meeting

GML and CIRES researchers are presenting several talks and posters at the 2022 Fall Meeting of the American Geophysical Union, and collaborating on many more.
June 6, 2022

Carbon dioxide now more than 50% higher than pre-industrial levels

Carbon dioxide measured at NOAA’s Mauna Loa Atmospheric Baseline Observatory peaked for 2022 at 421 parts per million in May, pushing the atmosphere further into territory not seen for millions of years.
May 23, 2022

Greenhouse gas pollution trapped 49% more heat in 2021 than in 1990, NOAA finds

Greenhouse gas pollution caused by human activities trapped 49% more heat in the atmosphere in 2021 than they did in 1990, according to NOAA scientists.
May 9, 2022

HORUS is approved to fly in the national airspace in northeastern Colorado

NOAA Global Monitoring Laboratory has recently obtained approval from the FAA to fly the High-altitude Operational Returning Unmanned System (HORUS) up to 90,000 ft above mean sea level in the national airspace in northeastern Colorado.
April 7, 2022

Increase in atmospheric methane set another record during 2021

For the second year in a row, NOAA scientists observed a record annual increase in atmospheric levels of methane, a powerful, heat-trapping greenhouse gas that’s the second biggest contributor to human-caused global warming after carbon dioxide.
April 1, 2022

Modeling greenhouse gas emissions from atmospheric observations with Lei Hu

In celebration of Women’s History Month, this article continues a series of interviews with NOAA Research employees and scientists.