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carbon dioxide

A cliff with different layers of soil and rock, seen from the side
Posted inResearch Spotlights

Coming to a Consensus on Carbon

by Rebecca Owen 7 March 202426 June 2024

A new study describes inconsistencies in how different Earth system models predict soil carbon levels in a warming climate.

A large plume of gray-brown smoke and ash covers most of the sky above the waterfront in Hobart Harbor, Tasmania, Australia.
Posted inScience Updates

The Open Ocean, Aerosols, and Every Other Breath You Take

by Rachel Shelley, Morgane M. G. Perron, Douglas S. Hamilton and Akinori Ito 1 March 20241 March 2024

Phytoplankton and other marine plants produce half of Earth’s atmospheric oxygen and have big effects on food webs and climate. To do so, they rely on nutrients from the sky that are hard to quantify.

Cars sit in multiple lanes of traffic on a congested road in Mexico. A man in a business suit with a yellow object under his arm is crossing the road in front of the vehicles with his back to the camera.
Posted inResearch Spotlights

Researchers Develop Mexico’s First Comprehensive Greenhouse Gas Budget

Rachel Fritts, Science Writer by Rachel Fritts 8 January 202428 June 2024

A new study delves into 2 decades of data to create a comprehensive quantification of carbon, methane, and nitrous oxide sources and sinks that could help guide climate policy.

Close-up view of light-colored, underwater hydrothermal rock formations
Posted inOpinions

A Transformative Carbon Sink in the Ocean?

by Doug Reusch, Kayleigh Brisard, Gil Hamilton and Carson Theriault 12 December 202312 December 2023

Water-rock reactions in some hydrothermal systems produce both hydrogen, which could be tapped for clean energy, and alkaline solutions that could help draw down atmospheric carbon dioxide.

A fluxbot, a small white box containing wires and a piece attached with duct tape. A solar panel is next to it.
Posted inNews

Affordable Robots Measure Soil Respiration

by Emily Dieckman 8 December 20238 December 2023

Measuring soil carbon flux, also known as soil respiration, can be expensive or time-consuming. A set of affordable robots that gather these data autonomously could especially benefit the Global South.

Visualization of the Kuroshio current.
Posted inEditors' Highlights

Nutrients at Depth Can Be Uplifted by the Kuroshio Large Meander

by Takeyoshi Nagai 8 December 20238 December 2023

Aperiodic, southward deflection of the Kuroshio, a.k.a. the Kuroshio large meander, uplifts the nutrients in deep layers to induce offshore phytoplankton bloom.

Diagram from the study.
Posted inEditors' Highlights

Urban Greening Could Help Achieve Carbon Neutrality Goals

by Jiwen Fan 6 December 20235 December 2023

A new modeling framework highlights that urban greening is a sustainable solution to achieve environmental co-benefits in mitigating heat and carbon emissions.

Illustration of vertical nutrient and organic carbon profiles.
Posted inEditors' Vox

Ocean Deserts Could Help Capture CO2 and Mitigate Global Warming

by Minhan Dai, Ya-Wei Luo, Hongyang Lin, Eric P. Achterberg, Thomas J. Browning, Matthew J. Church, Zhongping Lee and Wei-Lei Wang 1 December 20234 December 2023

Various nutrient sources in the upper waters of oceanic subtropical gyres, which are the Earth’s largest oligotrophic ecosystems, play a crucial role in governing the sequestration of atmospheric CO2.

Sedimentary rocks exposed to weathering
Posted inNews

Weathering of Rocks Can Release Carbon Dioxide

Rachel Crowell, Science Writer by Rachel Crowell 28 November 202329 November 2023

New research upends the notion that the weathering of rocks mainly removes CO2 from the atmosphere. Rocks can also be carbon sources, releasing as much CO2 as Earth’s volcanoes.

A man wearing a blue life vest stands knee deep in water to collect a water sample downstream of the large glacier in the background.
Posted inResearch Spotlights

Measuring Carbon’s Flow from Land to Sea

by Rebecca Owen 21 November 202321 November 2023

A new study catalogs how dissolved inorganic carbon moves through southeast Alaska’s waterways.

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