Climate - truthful information about climate, related activism and politics.

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Discussion of climate, how it is changing, activism around that, the politics, and the energy systems change we need in order to stabilize things.

As a starting point, the burning of fossil fuels, and to a lesser extent deforestation and release of methane are responsible for the warming in recent decades: Graph of temperature as observed with significant warming, and simulated without added greenhouse gases and other anthropogentic changes, which shows no significant warming

How much each change to the atmosphere has warmed the world: IPCC AR6 Figure 2 - Thee bar charts: first chart: how much each gas has warmed the world.  About 1C of total warming.  Second chart:  about 1.5C of total warming from well-mixed greenhouse gases, offset by 0.4C of cooling from aerosols and negligible influence from changes to solar output, volcanoes, and internal variability.  Third chart: about 1.25C of warming from CO2, 0.5C from methane, and a bunch more in small quantities from other gases.  About 0.5C of cooling with large error bars from SO2.

Recommended actions to cut greenhouse gas emissions in the near future:

Anti-science, inactivism, and unsupported conspiracy theories are not ok here.

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Social media posts by conspiracy theorist Alex Jones received 408 million views – more than emergency services and mainstream media combined.

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The shift to sustainable aviation fuel is still minuscule, while growth in passenger air travel is drowning out any climate gains so far. For example, despite IAG’s world-leading status, cleaner fuel accounted for only about 1.9% of its overall fuel consumption last year, and its emissions from fuel combustion still rose by 5%.

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The paper is here

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The [peer-reviewed] report, published Tuesday by the nonprofit Conservation International in the journal Nature Communications Earth and Environment, sheds light on how a historically overlooked population has served as one of Earth’s most effective guardians for centuries.

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The papers are here and here

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A prolonged stretch of unusually hot, midsummer heat and humidity will grip a large portion of the United States from July 21 to 25. What began across the Southeast over the weekend is forecast to expand into the mid-South early in the week, then expand into the Midwest by mid-to-late week.

A Climate Central analysis finds that human-caused climate change made this excessive heat at least three times more likely for nearly 160 million people, nearly half of the U.S. population.

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“Best-case-scenario estimates — absolute best-case — are that these cloud-seeding operations are able to augment the amount of precipitation by at most 10% to 15% over very limited areas,” Swain said. “On average, it’s a lot lower than that. In fact, in some cases, it’s difficult to prove that cloud seeding does anything at all.”

Indeed, Andrew Dessler, a professor of atmospheric sciences at Texas A&M University, has gone so far as to call cloud seeding a scam — in part because it can prey on farmers and other people who are desperate for rain, and because it typically delivers only modest results, he said.

“There’s no physical way that cloud seeding could have made the Texas storm,” Dessler said, noting that the storm was fueled by extremely high levels of atmospheric water that stemmed from a tropical disturbance in the Gulf of Mexico. “This is a nonsense argument. There’s no debate here about whether cloud seeding played a role in this

Archived copies of the article

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cross-posted from: https://lemmy.nz/post/25824399

Preliminary data from a NASA-funded Greenland survey point to a two-degree centigrade rise in regional ocean water temperatures in less than a decade.

For the first time ever, a team of researchers took the data from a subglacial Greenland channel in February of this year using a custom-built, remotely operated vehicle equipped with sonar, laser-ranging and a mass spectrometer.

Preliminarily, what we've been able to show is, at least during this year, ocean water in this region is almost two degrees warmer than it was less than 10 years ago, Britney Schmidt, a Cornell University astrobiologist and the ongoing Icefin project’s principal investigator, tells me in Reykjavik. It's crazy amounts of warming; we're losing this ice very rapidly and it’s much warmer than I would have expected; two degrees in 10 years is insane, she says.

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As oil and gas giants profit, they push the blame onto us. It’s time to take our power back.

We don’t need more guilt. We need more power. We need bold, collective action, not individual blame.

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The top-level post uses a gift link with a view count limit. If it runs out, there is an archived copy of the article

The paper is here

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By the end of the century, warming of up to 10 degrees Fahrenheit is possible across the Great Lakes region under heavy use of fossil fuels.

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No mention of using the CO2 to push out more oil, which is a likely reason for wanting to put it in this location.

Access options:

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Edit: replaced main link with a gift link

There is also an archived copy of the article

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UK potatoes, South Korean cabbage and west African cocoa are just some of the foods that became markedly more expensive after extreme weather events in recent years, according to new research.

The study, published in Environmental Research Letters, analyses 16 examples of food price rises across the world that followed periods of extreme heat, drought or rainfall over 2022-24.

A “striking” example, according to the lead author, is the wide-ranging price impact following a 2024 heatwave in Asia, which saw cost increases from onions in India to rice in Japan.

Soaring food prices have been a major concern for consumers around the world since around 2021, with prices rising due to extreme weather fuelled by climate change, higher production costs and Russia’s invasion of Ukraine – among other factors.

The new findings act as a “stark reminder” of the “significant pressure” climate change is already having on crops, a researcher not involved in the study says

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