this post was submitted on 10 Dec 2024
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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:

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Monarch Butterflies Are Recommended for Protected Status | They would become the most commonly seen species to receive federal protection if the proposal is adopted. (www.nytimes.com)
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over the next 60 years, North American monarchs east of the Rocky Mountains have a 56 to 74 percent probability of hitting the point where extinction appears inevitable. For those to the west, that probability was 99 percent.

The primary drivers affecting the butterflies, the assessment found, were the loss and degradation of breeding, migratory and overwintering habitat; exposure to insecticides; and the effects of climate change.

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