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Topic: Carbon dioxide

Atmospheric carbon dioxide measured at NOAA’s Mauna Loa Atmospheric Baseline Observatory peaked for 2021 in May at a monthly average of 419 parts per million (ppm), the highest level since accurate measurements began 63 years ago, according to scientists from NOAA and Scripps Institution of Oceanography at the University of California San Diego. (2019 photo of observatory grounds, Big Island, Hawaii.)

During a year of extremes, carbon dioxide levels surge faster than ever

June 6, 2024

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Atmospheric carbon dioxide measured at NOAA’s Mauna Loa Atmospheric Baseline Observatory peaked for 2021 in May at a monthly average of 419 parts per million (ppm), the highest level since accurate measurements began 63 years ago, according to scientists from NOAA and Scripps Institution of Oceanography at the University of California San Diego. (2019 photo of observatory grounds, Big Island, Hawaii.)

Scientists raise a rosette loaded with water samples to measure carbon dioxide in the ocean. Credit:

NOAA, DOE sign agreement to advance marine carbon dioxide removal

June 6, 2024

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Scientists raise a rosette loaded with water samples to measure carbon dioxide in the ocean. Credit:

Photo of a rosette of sample bottles being recovered from the water during the 2023 A16N GO-SHIP cruise on the NOAA Ship Ronald H. Brown, which traveled from Suape, Brazil, to Reykjavik, Iceland.

Biden-Harris Administration invests $2.1 million for measuring surface ocean carbon through the Investing in America agenda

May 30, 2024

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Bipartisan Infrastructure Law

measurements and observations

Photo of a rosette of sample bottles being recovered from the water during the 2023 A16N GO-SHIP cruise on the NOAA Ship Ronald H. Brown, which traveled from Suape, Brazil, to Reykjavik, Iceland.

A rectangular tube is attached to the banister of a deck on a building. The deck overlooks mountains with some snow cover and a two lane road. Cloud cover is below the deck height, down in the valleys.

Broken record: Atmospheric carbon dioxide levels jump again

June 5, 2023

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A rectangular tube is attached to the banister of a deck on a building. The deck overlooks mountains with some snow cover and a two lane road. Cloud cover is below the deck height, down in the valleys.

Photo of a salt water marsh near the Wando River, Daniel Island, South Carolina. Increasing salt marshes can provide more storage for carbon.

Carbon dioxide removal as a tool to mitigate climate change

December 1, 2022

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Photo of a salt water marsh near the Wando River, Daniel Island, South Carolina. Increasing salt marshes can provide more storage for carbon.

Kelp exposed at low tide on Alaska's Kiska Island.

Understanding blue carbon

September 29, 2022

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carbon capture and storage

Kelp exposed at low tide on Alaska's Kiska Island.

Air samples from NOAA's Mauna Loa observatory in Hawaii provide important data for climate scientists around the world. On Thursday, NOAA announced that analysis of data from their global sampling network showed that levels of the potent greenhouse gas methane recorded the largest annual increase ever observed in 2021, while carbon dioxide continued to increase at historically high rates.

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

June 3, 2022

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Air samples from NOAA's Mauna Loa observatory in Hawaii provide important data for climate scientists around the world. On Thursday, NOAA announced that analysis of data from their global sampling network showed that levels of the potent greenhouse gas methane recorded the largest annual increase ever observed in 2021, while carbon dioxide continued to increase at historically high rates.

Atmospheric carbon dioxide measured at NOAA’s Mauna Loa Atmospheric Baseline Observatory peaked for 2021 in May at a monthly average of 419 parts per million (ppm), the highest level since accurate measurements began 63 years ago, according to scientists from NOAA and Scripps Institution of Oceanography at the University of California San Diego. (2019 photo of observatory grounds, Big Island, Hawaii.)

Carbon dioxide peak in May breaks another record

June 7, 2021

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greenhouse gases

measurements and observations

Atmospheric carbon dioxide measured at NOAA’s Mauna Loa Atmospheric Baseline Observatory peaked for 2021 in May at a monthly average of 419 parts per million (ppm), the highest level since accurate measurements began 63 years ago, according to scientists from NOAA and Scripps Institution of Oceanography at the University of California San Diego. (2019 photo of observatory grounds, Big Island, Hawaii.)

NOAA's Mauna Loa observatory is a premier research facility that has continuously monitored and collected atmospheric data since the 1950s. This photo, taken in 2019, shows the observatory on its perch at 11,000 feet elevation on Hawaii's tallest mountain, which enables sampling of "background" air that is free of local pollution.

Carbon dioxide levels now higher than at any time in the past 3.6 million years

April 7, 2021

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greenhouse gases

NOAA's Mauna Loa observatory is a premier research facility that has continuously monitored and collected atmospheric data since the 1950s. This photo, taken in 2019, shows the observatory on its perch at 11,000 feet elevation on Hawaii's tallest mountain, which enables sampling of "background" air that is free of local pollution.

Atmospheric carbon dioxide measured at NOAA’s Mauna Loa Atmospheric Baseline Observatory peaked for 2021 in May at a monthly average of 419 parts per million (ppm), the highest level since accurate measurements began 63 years ago, according to scientists from NOAA and Scripps Institution of Oceanography at the University of California San Diego. (2019 photo of observatory grounds, Big Island, Hawaii.)

Rise of carbon dioxide in Earth's atmosphere continues unabated

June 4, 2020

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measuring and modeling climate

Atmospheric carbon dioxide measured at NOAA’s Mauna Loa Atmospheric Baseline Observatory peaked for 2021 in May at a monthly average of 419 parts per million (ppm), the highest level since accurate measurements began 63 years ago, according to scientists from NOAA and Scripps Institution of Oceanography at the University of California San Diego. (2019 photo of observatory grounds, Big Island, Hawaii.)

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