Topic

Record CO2 fuels heatwaves, wildfires

17h

The World Meteorological Organization reported 2024 saw the largest annual rise in atmospheric CO2 on record, which scientists said would intensify heatwaves and boost wildfire emissions.

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Holy wow, +3.5 ppm CO₂ last year, up from +2.4 ppm average the past decade, and +0.6 ppm in the 1960s.

It gets scarier the closer you look at it. All this is a stress test for the planet, and it's buckling.

Two big reasons for the massive increase: wildfires, and the ocean sinks are shutting down.
Globally averaged CO2 concentration (a) and its growth rate (b) from 1984 to 2024. Increases in successive annual means are shown as the shaded columns in (b). The red line in (a) is the monthly mean with the seasonal variation removed; the blue dots and blue line in (a) depict the monthly averages. Observations from 179 stations were used for this analysis.
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"Uiterst gevaarlijke situatie dreigt."

De kolossale milieuproblemen als #klimaatverandering moeten een belangrijk verkiezingsthema zijn.

Politici, journalisten en wetenschappers hebben een verantwoordelijkheid dat aan 'de mensen thuis' duidelijk te maken.
www.nu.nl/klimaat/6372...
CO2 in atmosfeer neemt in recordtempo toe: 'Uiterst gevaarlijke situatie dreigt'
De hoeveelheid CO2-deeltjes in de atmosfeer is vorig jaar sneller toegenomen dan ooit, meldt de Wereld Meteorologische Organisatie in een woensdag verschenen wetenschappelijke publicatie.
www.nu.nl
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levels CO2 concentration in the atmosphere are increasing rapidly... very worrying.

"Scientists are worried that the natural land and ocean “sinks” that remove CO2 from the air are weakening as a result of global heating, which could form a vicious circle and drive temperatures up even faster." 1/n
Record leap in CO2 fuels fears of accelerating global heating
CO2 in air hit new high last year, with scientists concerned natural land and ocean carbon sinks are weakening
www.theguardian.com
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2024 was an El Niño. So higher growth rate was expected, but not that high.
Main reasons are fires, esp. in the tropics and overall land sink strongly reduced. Ocean sink did not shut down.
More on this mid November with the global carbon budget 2025 release.

by Glen P. Peters Reposted by Du Toit

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Hmmm, I think they mean CO2 levels in the atmosphere (the CO2 concentration), not emissions.

A common confusion, emissions and concentrations...

(though, the title is still correct, just not what the WMO report is about)

www.abc.net.au/news/2025-10...

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Het Greenhouse Gas Bulletin, waarin de @wmo-global.bsky.social waarschuwt voor de risico's van voortdurende, zelfs groéiende uitstoot van broeikasgassen, is hier te vinden:
wmo.int/publication-...
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Though, not sure I would have written the way WMO did here.

We estimated fossil CO2 to grow 0.8%, which is not really static.

In any case, total and fossil CO2 emissions were also a record high!

wmo.int/files/greenh...

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"Several factors contributed to the leap in CO2, including another year of unrelenting fossil fuel burning despite a pledge by the world’s countries in 2023 to “transition away” from coal, oil and gas. Another factor was upsurge in wildfires in conditions made hotter and drier by global heating" 3/n
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Because the planet’s natural “sponges” are weakening — warmer oceans can’t dissolve as much CO₂, and hotter, drier land means stressed forests absorb less and burn more. So less carbon is taken in, and more stays in the air, speeding up warming.
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"However, scientists are concerned about a third factor: the possibility that the planet’s carbon sinks are beginning to fail. About half of all CO2 emissions every year are taken back out of the atmosphere by being dissolved in the ocean or being sucked up by growing trees and plants." 4/n
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Cuando tras un tiempo de dieta vuelves a la báscula y descubres que esas "excepciones" que hacías eran más que excepciones

wmo.int/news/media-c...
Carbon dioxide levels increase by record amount to new highs in 2024
wmo.int
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"The global average concentration of the gas surged by 3.5 parts per million to 424ppm in 2024, the largest increase since modern measurements started in 1957, according to the report by the World Meteorological Organization." 2/n
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"But the oceans are getting hotter and can therefore absorb less CO2 while on land hotter and drier conditions and more wildfires mean less plant growth." 5/5