Climate

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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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How we get off fossil fuels looks very roughly like this:

  • Generate electricity without burning stuff (wind, solar, geothermal, storage, and maybe nuclear if it's cheap enough)
  • Electrify everything we can (electric vehicles, elecrified mass transit, ebikes, heat pumps for home and district heat, nitrate fertilizer manufacturing, etc)
  • Stop doing the things we can't (a few industrial processes)
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Members of Sunrise Movement chapter claim university’s energy center engaging in deceptive trade practices

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As scientists confirmed that March was the United States’ most abnormally hot month in recorded history, dozens of climate deniers gathered to promote misinformation and tout their newfound influence on federal policy.

At a conference hosted by the prominent science-denying thinktank the Heartland Institute last week, a crowd of mostly middle-aged men in suits claimed the world is finally waking up to the idea that the climate crisis does not exist.

“I feel wonderful,” James Taylor, the president of the Heartland Institute, said in an interview. “The truth is winning out.”

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Leading scientists have rejected claims like Mr. Bessent’s, and noted that natural factors like the sun, volcanic eruptions and orbital cycles would be cooling the earth if not for human activity. Instead, about 200 years ago, after the start of the Industrial Revolution, the direction of global temperatures reversed and began rapidly warming.

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Average global temperatures are expected to rise 1.5 degrees Celsius (2.7 degrees Fahrenheit) above preindustrial levels within the next decade. That would unleash dire impacts that include increased and more intense heat waves and heavy precipitation, melting of the world’s glaciers and ice sheets and a higher risk of severe wildfires.

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The paper is here

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because climate-related disasters play such a big role in making insurance expensive, this disconnect also reinforces complaints many people have about the Fed’s approach to growing climate chaos — which is, lately, to plug its ears and ignore it.

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Colombia and the Netherlands will host government ministers, scientists, Indigenous peoples, and civil society groups from at least 50 states, determined to work together to figure out a just transition away from fossil fuels.

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Using traffic cameras and phone data, researchers created a real-time emissions map—giving cities a powerful new tool to cut pollution faster and smarter.

The paper is here

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If you live in California, it's worth calling your State Assemblymember and State Senator and asking them to vote for AB1243 and SB684 respectively.

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