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carbon dioxide

Photos of clouds, forest and sea.
Posted inEditors' Vox

Inventorying Earth’s Land and Ocean Greenhouse Gases

by Benjamin Poulter, Ana Bastos, Josep G. Canadell, Philippe Ciais, Nicolas Gruber, Judith Hauck, Robert B. Jackson, Masao Ishii, Jens Daniel Müller, Prabir K. Patra and Hanqin Tian 17 February 20225 December 2022

A new special collection in AGU journals will present findings from the Second REgional Carbon Cycle Assessment and Processes (RECCAP2) study with a decade of data on greenhouse gas growth.

A satellite view of Earth’s surface
Posted inResearch Spotlights

Why Is Climate More Sensitive in the Latest Earth System Models?

by David Shultz 26 March 202022 February 2023

Compared with previous generations, current Earth system models predict that Earth’s climate is more sensitive to carbon dioxide. Where does the increased sensitivity come from?

Satellite image of the central California coast with wildfire smoke
Posted inNews

Golden State Blazes Contributed to Atmospheric Carbon Dioxide

Rachel Crowell, Science Writer by Rachel Crowell 27 September 201913 February 2023

A new case study investigates causes and effects of California’s 2017 wildfire season.

Photomicrographs showing typical subpolar (left) and polar (right) foraminiferal assemblages
Posted inResearch Spotlights

Atlantic Circulation Consistently Tied to Carbon Dioxide

by David Shultz 25 September 20192 July 2024

Past ocean surface conditions suggest that over the past 800,000 years, atmospheric carbon dioxide levels typically rose on millennial timescales when Atlantic overturning was weaker and vice versa.

Laboratory experiment used to simulate the shock wave made by an asteroid impact on Mars
Posted inResearch Spotlights

Rover and Lasers Unlock Clues to Early Martian Atmosphere

Aaron Sidder, freelance science writer by Aaron Sidder 3 April 201924 April 2024

Sediments from the Curiosity rover and experiments using tanks of gas and laser beams helped reveal how water continued to flow on Mars after the planet lost its atmospheric carbon dioxide.

Quill volcano Sint Eustatius Island
Posted inScience Updates

Project VoiLA: Volatile Recycling in the Lesser Antilles

by S. Goes, J. Collier, J. Blundy, J. Davidson, N. Harmon, T. Henstock, J. M. Kendall, C. Macpherson, A. Rietbrock, K. Rychert, J. Prytulak, J. van Hunen, J. J. Wilkinson and M. Wilson 14 March 201927 January 2023

Deep water cycle studies have largely focused on subduction of lithosphere formed at fast spreading ridges. However, oceanic plates are more likely to become hydrated as spreading rate decreases.

Posted inEditors' Vox

Coastal Ocean Warming Adds to CO2 Burden

by P. Brewer 29 May 20185 January 2023

With coastal oceans around the world changing from the effects of urbanization, rising carbon dioxide levels, and climate warming, recent work begins to find new land-sea linkages.

Carbon dioxide frost presence at sunrise on Mars integrated over 1 year; note CO2 frost at low latitudes.
Posted inResearch Spotlights

Carbon Dioxide Frost May Keep Martian Soil Dusty

by David Shultz 8 July 201612 October 2022

Temperature readings acquired from orbit show that Mars's surface gets cold enough at night to allow layers of solid carbon dioxide frost up to several hundred micrometers thick to build up near the equator.

Yellowstone-National-Park-beehive-geyser
Posted inNews

Can Carbon Dioxide Trigger Geyser Eruptions?

JoAnna Wendel, freelance science writer and illustrator by JoAnna Wendel 16 March 20166 October 2022

Researchers looking at geyser discharge water in Yellowstone National Park found that dissolved carbon dioxide could be involved in a geyser's eruption.

Posted inNews

Scientists Find the Point of No Return for Antarctic Ice Cap

JoAnna Wendel, freelance science writer and illustrator by JoAnna Wendel 10 March 201618 October 2022

Varying amounts of glacial debris in a core of ancient sediment show the ice cover grew and shrank until airborne carbon dioxide levels fell below 600 parts per million, spurring steady growth.

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