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.

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submitted 6 days ago* (last edited 6 days ago) by silence7 to c/climate
 
 

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The imaging spectrometer aboard the Carbon Mapper Coalition’s Tanager-1 satellite identified methane and carbon dioxide plumes in the United States and internationally.

Using data from an instrument designed by NASA’s Jet Propulsion Laboratory in Southern California, the nonprofit Carbon Mapper has released the first methane and carbon dioxide detections from the Tanager-1 satellite. The detections highlight methane plumes in Pakistan and Texas, as well as a carbon dioxide plume in South Africa.

The data contributes to Carbon Mapper’s goal to identify and measure greenhouse gas point-source emissions on a global scale and make that information accessible and actionable.

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"Even temporarily exceeding 1.5 degrees Celsius before bringing temperatures back down — a scenario known as an “overshoot” — could cause sea level rises and other disastrous repercussions that might last millenia."

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This has been one of the inherent problems with any kind of carbon removal — there's no real way to profit from it, so it was unlikely to happen at scale bigger than a PR operation unless government either pays for it or requires firms to pay for it.

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A fossil fuel tycoon tied to Neil Gorsuch and other corporate power brokers are pushing the Supreme Court to help approve a controversial oil train and kill environmental protections.

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The Chamber of Deputies, Mexico’s lower house of Congress, on Wednesday began discussions on reclassifying Petroleos Mexicanos and Comision Federal de Electricidad from “state productive companies” to “public companies.” The change would force the companies to prioritize the government’s social and economic objectives over corporate profits.

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