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greenhouse gases

Plot showing UV-induced emissions weighted global warming potential in CO2 equivalent for each greenhouse gas emitted from cell suspensions of 16 species of marine phytoplankton.
Posted inEditors' Highlights

Phytoplankton as Emitters of Greenhouse Gases

by Marguerite A. Xenopoulos 15 October 20217 October 2021

Phytoplankton remove carbon dioxide from the atmosphere; a new study reveals that marine phytoplankton can also produce greenhouse gases when exposed to ultraviolet radiation.

La atmósfera sobre las regiones remotas del océano alberga una química importante que controla el presupuesto global de metanol.
Posted inResearch Spotlights

Mejorando el presupuesto mundial para el metanol atmosférico

by David Shultz 8 June 20213 December 2021

Nuevos datos de exploración con aeronaves muestran que aunque la química atmosférica sobre regiones oceánicas remotas es una fuente considerable de producción de metanol, la emisión neta de metanol del océano es menor.

The atmosphere above remote ocean regions plays an important role in the global methanol budget.
Posted inResearch Spotlights

Improving the Global Budget for Atmospheric Methanol

by David Shultz 25 March 20213 December 2021

New aircraft survey data show that although atmospheric chemistry above remote ocean regions is a considerable source of methanol production, the ocean’s net methanol emission is minor.

The Trans-Alaska Pipeline stretches through a green, rural landscape.
Posted inNews

The Surprising Source of Greenhouse Gas Emissions

by Sarah Derouin 1 March 202129 September 2021

Changing the way emissions are tallied may help litigators focus on the worst climate offenders and shape mitigation.

Two researchers look on as a water-sampling device hangs over the side of a research vessel during a cruise to study nitrous oxide emissions.
Posted inResearch Spotlights

Marine Nitrous Oxide Emissions off Northwest Europe

by Aaron Sidder 17 June 202029 September 2021

Continental shelves and estuaries are natural sources of nitrous oxide, but current global estimates of these emissions carry a lot of uncertainty, a problem that calls for regional studies.

Group photo of paleoclimatology proxy experts at a paleo-CO2 workshop
Posted inNews

2020 Hindsight: A Website for All Paleo-CO2 Data

by E. Malsbury 10 January 202014 June 2022

A new website will soon compile and display all ancient atmospheric CO2 data.

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 20198 June 2022

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.

Posted inEditors' Highlights

What Lies and Waits Beneath Lake Ice?

by Ankur R. Desai 26 September 2018

Rarely made detailed measurements of carbon dioxide and methane under lake ice reveal a story more complex than simple models of gas buildup, with surprising findings for climate change impacts.

Posted inEditors' Vox

Methane, Climate Change, and Our Uncertain Future

by J. Dean 11 May 201829 September 2021

Methane is generally considered secondary to carbon dioxide in its importance to climate change, but what role might methane play in the future if global temperatures continue to rise?

Mileage goals set in 2012 would require automobiles in the U.S. to average 54.5 mpg by 2025.
Posted inNews

EPA Reassesses Feasibility of Plan to Increase Fuel Efficiency

by E. Jacobsen 16 March 20177 January 2022

This January, the Environmental Protection Agency (EPA) finalized mileage standards set in 2012. Now, at the push of the auto industry, EPA and other agencies are going back for another look.

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