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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“It’s pretty well known that in a typical year, private jets are responsible for about 2 percent of aviation emissions,” said Dan Rutherford, the group’s senior director of research and a co-author of the new report. “What we’ve done for the first time is, we’ve basically used flight trajectory data to break that out into the individual contributions of airports and countries.”

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2025 marks 10 years since the adoption of the Sustainable Development Goals (SDGs), 17 goals and 169 targets to achieve global prosperity.

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The paper is here

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The US Navy will no longer distribute certain satellite readings, a move that will leave forecasters without important insights into storms’ strength and structure.

What's going on is that the same microwave measuring instruments that are used to track hurricanes also are used to monitor sea ice, and they showed an ongoing loss of sea ice as a result of the warming caused by greenhouse gases that result from fossil fuel consumption. So the Trump administration decided to cut off access to make it harder to monitor sea ice.

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“If insurance is no longer available, other financial services become unavailable too,” he wrote in a LinkedIn post that made headlines. “The economic value of entire regions — coastal, arid, wildfire-prone — will begin to vanish from financial ledgers,” he added. “Markets will reprice, rapidly and brutally.”

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For 50 years, automakers have had to increase the fuel efficiency of their vehicles or pay fines. The Republican megabill would set those penalties to $0.

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Researchers analyzed trade-related risks to energy security across 1,092 scenarios for cutting carbon emissions by 2060. They found that swapping out dependence on imported fossil fuels for increased dependence on critical minerals for clean energy would improve security for most nations -- including the U.S., if it cultivates new trade partners.

A pivot from fossil fuels to clean energy technologies by 2060 would improve energy security and reduce trade risks for most nations, according to an April 9 study in Nature Climate Change.

Lithium, nickel, cobalt, copper, and rare earth minerals are among the prized materials for countries and corporations racing to secure supplies for energy systems that do not add greenhouse gases to our atmosphere. Unlike fossil fuels, natural reserves of these materials are most concentrated in the Global South, shuffling the geopolitics of energy and global trade.

"Most people are focused on the new stuff that could be a problem, and not really considering the security benefits of moving away from fossil fuels," said Steve Davis, the study's senior author and a professor of Earth system science in the Stanford Doerr School of Sustainability. "For most countries in a net-zero emissions system in the future, trading off the reduced dependence on imported fossil fuels and increased dependence on these new materials is actually a win for energy security."

Even for the United States, which has some of the world's largest fossil fuel reserves but only a sliver of critical mineral deposits, decarbonization could boost energy security, especially if the country cultivates new trade partners, the researchers found.

Since 2020, the U.S. has exported more crude oil and petroleum products than it has imported -- but it still imports millions of barrels daily, mostly from Canada, Mexico, Saudi Arabia, Iraq, and Colombia. "Generating electricity with solar and wind will require more imports than using abundant gas and coal resources in the U.S., but reduced dependence on foreign oil will be a big advantage as transportation is electrified," Davis said.

Oil-rich nations including Russia and Saudi Arabia are among the minority of countries that would see energy security decline in net-zero scenarios even with expanded trade networks.

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Residential greenhouse gas emissions are ~8% of the state's overall emissions. That's big enough to matter.

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I'll note that this behavior is unsurprising, as Trump solicited a record-sized bribe from the oil industry.

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