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‘We should have better answers by now’: climate scientists baffled by unexpected pace of heating
(www.theguardian.com)
this post was submitted on 15 Aug 2024
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There are also some comments about aircon not being a good answer if solely relied on, including:
Further, what happens when everyone knows the power isn't coming back and instead the roads out of Phoenix all get backed up and people die in the heat of their cars trying to escape the heat of Phoenix. Because heat can kill a lot of vehicles, and a lot of people have ill-maintained vehicles, meaning roads being completely blocked from escape can happen fast.
I really think Phoenix will become the first mass casualty event from climate change in the USA.
EDIT: Obligatory Peggy Hill. Peggy gets it.
That's one of those nightmare thoughts - when the power goes out, what do people usually do for a while? Wait for it to come back on. Someone is coming to fix it, right? Much of modern society is built upon such assumptions, and it mostly works. So I think you're right for some, but many would perish at home, trying to outlast the day (and what if the night doesn't cool?)
And then their food goes bad. Three days of starvation is all it takes to eat cake.
Water also disappears. At some point water is being pumped by a power source. I suppose that's more when people get driven out, by hunger and thirst than by just curiosity or a plan. So much easier to leave before things go bad, but like Katrina showed, mobility is a class thing, some people can't leave like that.
Lots of cars > lots of traffic > stopped cars > radiators don't cool > cars break down > roads blocked
Car radiators have fans. They can idle indefinitely. You're more likely to eventually run out of gas.
Edit: oh you mean because of the heat. I don't think that's going to be an issue, ambient temp is still going to be far below the roughly 200°F of an engine.
This assumes a car with a working cooling system. How many people have old cars with bad head gaskets or a radiator leak and "just fill it with water" and not fix the problem, only to find that pure water isn't enough, as modern cars will walk up and down from 185-235F, which will blow steam before the fans kick on. They never noticed because they only drove a few miles a day, not long or hard enough to find out there is a real problem and not a nuisance.
And considering how rarely she "got" things, that's saying a lot!
That’s when it becomes Rita as opposed to “heat Katrina”.
For folks who don’t remember/know about Rita because they didn’t live through it, less than a month after Katrina a record-breaking cat 5 hurricane was heading for Texas. Everyone still had Katrina on their minds and panicked. Millions of people (literally estimated as 2.5–3.7 million) evacuated, or tried.
The highways out of Houston came to a total standstill. About 100 people died before the storm even hit land because of the evacuation. And then the hurricane itself was nbd; the evacuation was literally the worst part.
I keep an old evaporative unit in the shed just in case. It only needs 70 watts and can thus run for quite a long time off a car battery or similar. Add a basic camping solar panel and you're more or less set for the day as long as you have water and don't live in a really high humidity place.
A significant amount of greenhouse gasses are emitted because of air conditioning. It's a feedback loop.
Wait really? Do you mean by the electricity generation or by a refrigerant process?
I know those processes are inefficient and create overall heat in the system as they can’t create cool but only push heat, there should be no green house emission, just heat generation.
Are you saying extra heat will stay in the atmosphere? That’s not good but it’s not the same as carbon which allows heat to build up.
The power used by AC is responsible for ~3% of global emissions. I can't find data about the impact of refrigerants ATM, but I assume it's significant because of their extremely high "global-warming-potential." I'm guessing a significant amount of emissions come from the manufacture of refrigerants, and a significant amount of refrigerants leak out of systems when they fail (or are improperly disposed of).
Air conditioners will soon be considered life support. In some places it will be a death sentence to have a power outrage. This isn't speculation. It's already happening.
Frankly, I am amazed it has not already happened in Houston, Dallas, San Antonio, or Austin. The power grid here in Texas is a disaster and the weather conditions are unforgiving. At least in the desert you can do evaporative cooling. That doesn't work where its hot and humid.
It has. Some weak ass cat-1 hurricane killed like a dozen people in TX earlier this year. The winds didn't harm anyone directly but it knocked out power for a few days in places. That's all it takes when temps are well above 100F.