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The State of Greenhouse Gases in the Atmosphere Based on Global Observations through 2020

Environmental News Bits

The latest analysis of observations from the WMO GAW in situ observational network shows that globally averaged surface mole fractions(1) for CO2, methane (CH4) and nitrous oxide (N2O) reached new highs in 2020, with CO2 at 413.2 ± 0.2 ppm(2), CH4 at 1889 ± 2 ppb(3) and… Read more →

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The CO2 problem in six easy steps (2022 Update)

Real Climate

Step 1: There is a natural greenhouse effect. This means that there is an upward surface flux of IR around (~398 W/m 2 ), while the outward flux at the top of the atmosphere (TOA) is roughly equivalent to the net solar radiation absorbed (~240 W/m 2 ). Step 2: Trace gases contribute to the natural greenhouse effect.

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A Quick Science Refresher on Greenhouse Gas

Greenbuilding Law

With the federal government and state of Maryland each having announced within days of each other, the mandated disclosure of greenhouse gas (GHG) emissions, we have received, maybe not surprising, many calls in the last two weeks inquiring “what are GHGs?” Simply put, gases that trap heat in the atmosphere (.

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A Nobel pursuit

Real Climate

The key aspects were the inclusion of water vapour feedback as temperatures increased, and the use of ‘convective adjustment’ to maintain stability of the lower atmospheric column. The basic issue stems from the different timescales of the ocean and atmosphere. Fred Singer, before his turn to the dark side).

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The definitive CO2/CH4 comparison post

Real Climate

So this is an attempt to put all of that in context and provide a hopefully comprehensive guide to how, when, and why to properly compare the two greenhouse gases. In 2020, CO 2 was at ~410 parts per million, while CH 4 was around 1870 parts per <it>billion</it> (or 1.87 Historical comparisons. W/m 2 for CH 4.

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Greenhouse gas emission impact from peatland fires underestimated by 200%-300%, shows new study

Frontiers

Deforestation fires in Brazil and Indonesia accounted for 3% and 7%, respectively, of the planet’s total greenhouse gas emissions (GHG) in 2019 and 2020, finds a new study in Frontiers in Climate. In Brazil, a total of 11,088 km 2 of forest were destroyed from August 2019 to July 2020. gigatons CO2e in 2020.

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Animal farming: a nitrogen and greenhouse gas party

HumanNature

Candidate in the Department of Atmospheric Science at Colorado State University Growing up in Latin America, food was at the center of many family gatherings. greenhouse gas emissions in the year 2020. As an atmospheric chemist, I want to better understand the emissions of agriculture to the atmosphere.