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 [email protected] to c/[email protected]
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[–] [email protected] 22 points 2 months ago (1 children)

The "first time"? Maybe in a controlled environment, but certainly not the first time. People already die from heat exhaustion around the world.

Also, the deadly factor really seems to be time rather than heat and humidity. Saunas are 65-90c with very high humidity and those are generally fine as long as you don't stay in too long.

[–] [email protected] 12 points 2 months ago (2 children)

Tell me that you haven't read it without telling me that you haven't read it

Owen has been put into the climate chamber by Jem Cheng, a research fellow at the Heat and Health Research Centre at the University of Sydney.

It’s part of a world-first study all about finding out at what point heat becomes deadly. Fifteen years ago, scientists proposed an environmental threshold at which no person would be able to survive for six hours.

But these conditions have never been tested on humans.

Until now.

“This study is all about human survivability,” Dr Cheng says.

“So we are the first to actually put people in these environments to actually see, physiologically, what is happening to their core temperature or to their heart rate.

What this new model shows is, when you take into account the limitations of human physiology, these upper wet-bulb temperature limits look as though they are much lower under certain types of conditions.”

[–] [email protected] 6 points 2 months ago

I did read it. All of those conditions have been experienced by humans, just perhaps not in a lab controlled study.

My problem is the clickbait headline. Its a bad headline.

[–] [email protected] 1 points 2 months ago

doesnt change the misleading title. i was in a sauna the first time at age 5 or 6. that can be pretty daedly