this post was submitted on 03 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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For the first time, humans were exposed to a deadly combination of heat and humidity. Here's how long they lasted (www.abc.net.au)
submitted 2 months ago by silence7@slrpnk.net to c/climate@slrpnk.net
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[–] BigMikeInAustin@lemmy.world 19 points 2 months ago (1 children)

Similar in Texas, though the whole state isn't near as humid as Florida.

[–] disguy_ovahea@lemmy.world 12 points 2 months ago* (last edited 2 months ago)

High humidity is what creates a higher wet bulb temperature. A 95°F wet bulb temperature is achieved when it’s 95°F outside with 100% humidity. The lower the humidity, the higher the temperature needs to be to hit the 95°F wet bulb temperature.

Wet bulb temperature matters most to animals with sweat glands, like humans. In higher humidity, it’s more difficult for our bodies to cool through sweat evaporation.