this post was submitted on 02 Sep 2024
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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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Even desert plants known for their resilience are burning and dying in the heat (www.nbcnews.com)
submitted 2 months ago by [email protected] to c/[email protected]
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[–] [email protected] 11 points 2 months ago

But clearly this is just a natural thing. Why, desert plants are KNOWN to burn up during natural shifts in climate, ESPECIALLY after an ice age ends!

@.@ Guess what dumb ass argument I hear a lot for why the summers are getting hotter

[–] [email protected] 7 points 2 months ago (1 children)

The thing about human-induced warming is that it has a rather pronounced effect at night when the planet is trying to shed the heat built up over the day and no longer can as effectively.

I am not a botanist, but I wonder if desert plants are adapted to take advantage of the cool desert nights to recover from the intense daytime heat? If so, I could see where they would be in trouble now.

[–] [email protected] 3 points 2 months ago

The water takes more energy to heat up and cool. That's why it's often cooler near bodies of water, especially large ones, as they take more time to change temperature.

Normal "land" take a lot less energy, but there is still some heat and cold being kept that takes more time to change.

Deserts have nothing to keep the cold or the heat, so as soon as the sun is gone it's far below zero, and as soon as the sun shows up it fires back up to very warm temps. Desert plants mostly survive by barely needing water.