From: AlleyCat <katt@gmail.com>
Newsgroups: alt.global-warming,alt.fan.rush-limbaugh,can.politics,alt.politics.liberalism,alt.politics.democrats,alt.politics.usa.republican
Subject: Warming Trend Since 2013 From Increased Absorbed Solar Radiation, Not CO2
Date: Sat, 28 Dec 2024 00:55:05 -0600
Organization: AlleyCat Computing, Inc.
Warming Trend Since 2013 From Increased Absorbed Solar Radiation, Not CO2
The 2013-2022 warming trend and the extreme warmth in 2023 were "not associated with" declining outgoing long-wave radiation induced by rising
greenhouse gases.
Instead, a new study published in the journal Science contends that decreasing cloud albedo and the consequent increase in ASR, or absorbed solar
radiation (+0.97 to 1.10 W/m²/decade according to ERA5 and CERES, respectively) explains the warming over the last decade. (Less cloud cover means
more solar radiation reaches the Earth's surface, warming it.)
A rising trend in anthropogenic greenhouse gases was supposed to reduce the Earth's outgoing long-wave radiation (OLR), and a declining OLR was
thought to be the driver of modern warming.
Instead, the opposite has occurred. There has been an increasing OLR trend since 2013.
This enhancement of the Earth's OLR trend actually serves to counteract the ASR-induced warming strongly associated with the aforementioned declining
cloud cover albedo.
In other words, the total greenhouse effect impact from rising greenhouse gases has recently been contributing to a reduction in global warming,
partially offsetting the warming induced by rising ASR.
"The EEI trend and 2023 peak are not associated with decreasing outgoing longwave radiation (OLR), as one would expect from increasing greenhouse-gas
concentrations in the absence of shortwave feedbacks. Instead, OLR has been increasing and largely offsetting even stronger absorbed solar radiation
(ASR) anomalies, consistent with climate models.
"The decadal 2013-2022 trend in ASR amounts to +1.10 W/m²/dec-1 in CERES and +0.97 W/m²/dec-1 in ERA5, reaching astonishing anomalies of +1.82 W/m²
in CERES and +1.31 W/m² in ERA5 in 2023. Variations of incident solar radiation (ISR), including by the 11-year solar cycle, are an order of
magnitude smaller, implying that reduced planetary albedo is the dominant cause.
"It is however striking that, according to CERES, ISR attained a positive anomaly in 2023 of +0.28 W/m², well above the previous solar-cycle maximum,
whereas ERA5 forcing still assumed a negative anomaly of -0.08 W/m²."
https://i0.wp.com/climatechangedispatch.com/wp-content/uploads/2024/12/science-headline.jpeg?ssl=1
https://climatechangedispatch.com/new-study-links-200-year-warming-trend-to-declining-cloud-cover-not-co2/
https://climatechangedispatch.com/satellites-confirm-2000-2022-warming-driven-by-rising-solar-radiation/
https://climatechangedispatch.com/study-doubling-co2-half-degree-warming-at-most/
https://climatechangedispatch.com/sunlight-and-clouds-not-co2-drive-earths-climate-new-study-finds/
https://www.science.org/doi/abs/10.1126/science.adq7280
=====
December:
Murcia's Record Lows
Red Alert In Bidar Amid India's Cold Wave
Italian Alps Hit -31.1c (-24f)
U.S. Cold-Deaths Double Since 1999-The Establishment Blames Global Warming
Japan's Record-Breaking Snowfall
BBC Still Pushing Polar Bear Propaganda
White Christmas For Europe
Bengaluru's Record Cold
Xinjiang Plummets To Record -42.5c
Antarctic Sea Ice Extent Higher Now Than In 1979
Bhopal Breaks 58-Year Record
Vostok At -40c (Again)
The Truth About Iceberg A-68
Extreme Cold And Heavy Snow Slam Finland
Europe Wind Power A "Shit Situation," Says Minister
Winter Weather Grips U.S.
India Reels
Vostok Below -40c
Snow Hits Malaga, Spain
Cold Wave Sweeps Pakistan
Canadian Prairies Near -40c
Texans Warned Of "Extreme Cold"
Antarctic Sea Ice Nearing 1979-1990 Average
"Excellent" Early-Season Snow Across The Alps
Delhi's Record Cold
Chilly Waters Stun Record Number Of Turtles
Record Cold Grips Indore
Asia Chills
Record Snowfall In Midwest
Another Round Of Arctic Air To Hit Much Of North America
Mumbai's Lowest Temp In A Decade
Northern Hemisphere Cold
Russia In The Freezer
India Chills
Northern India's Big Freeze Intensifies
Cold Wave Enters Vietnam
Freezing Lows And Heavy Snows Hit U.S., More To Come
Kashmir Freezes At -18c (-0.4f)
Below Average Antarctic Plateau
Another Round Of Lake-Effect Snow
Cold Waves Lifting Natural Gas Prices
Snow Returns To Scotland And Wider Europe
Global Temperature Tumbles
Antarctic Sea Ice Recovery
Severe Cold Hits Pakistan
Florida Set For Record Cold
Snowy November At Red Mountain
U.S. Battered By Cold And Record Snow
Parts Of Ontario Under A Meter Of Snow
Early-December To Deliver Another Burial To Europe