this post was submitted on 06 Sep 2026
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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:

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Power draw from the grid fluctuates greatly throughout the day, and across the year.

Conveniently power draw tends to be at its highest in the middle of the day when the sun is out and these panels can produce power to help meet the demand. Overnight the power draw is several times lower than peak, so the other power sources Minnesota has (coal, gas, nuclear, hydro, wind) can continue to keep the grid energized while the sun is down.

When solar is just part of a broader power source pool, grid level storage isn't needed.