this post was submitted on 16 Jul 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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[–] [email protected] 16 points 4 months ago (1 children)

Don't worry, they're also doing that by taking down storm sirens and replacing them with mobile alerts because basic maintenance is too much to ask. They just assume everyone has access to a phone at all times and that said phone is charged and capable of receiving the alert. Y'know, because the young and elderly don't deserve to be warned of an incoming tornado!

[–] [email protected] 8 points 4 months ago (1 children)

Hold on. Let me tell you. Sirens in Tennessee are the most bass ackward thing already.

Instead of having a siren sound going off while there is danger in the area... the siren going off is just the NOAA voice reading the alert like you hear on the radio! Big ass "siren" goes, "The National Weather Service has issued a tornado warning for (list of counties). At 7:55PM, Central Daylight Time, a storm capable of producing a tornado was located-"

After it reads off this useless info, what does it do? It shuts off. It stops making noise.

How are you supposed to hear it over the rain and thunder? How are you supposed to know when the danger is passed?

If it worked like it does in Oklahoma I would defend it but this is a travesty.

[–] [email protected] 5 points 4 months ago (1 children)

That's certainly not normal. I've seen numerous recordings of voice-capable sirens from TN and I've never seen one broadcast any EAS messages. Usually there's pre-recorded messages like "Tornado warning. This is a tornado warning. Residents should immediately take cover." stored on the controller which is used for such cases. For the siren to be doing what you're describing means something is seriously wrong with your sirens. Probably an incompetent EMA manager.

[–] [email protected] 6 points 4 months ago (1 children)

I obviously refuse to tell you what specific part of Tennessee I'm in but I'll try to find someone to email about it.

[–] [email protected] 3 points 4 months ago

Definitely get in contact woth with your local EMA. With storms only getting worse and more frequent it's pretty urgent.