291–300 of 370 posts
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> Venus is similar in structure and size to Earth, and is sometimes called Earth's evil twin. Its thick atmosphere traps heat in a runaway greenhouse effect, making it the hottest planet in our solar system with surface temperatures hot enough to melt lead — about 872 degrees Fahrenheit (467 Celsius).
Remember that you don't need AC to beat the heat - we've had other options for centuries. One of my favorites is fans. I've lived in a hot subtropical climate most of my life. The best modes of cooling are, in order of comfort: shade, clothing, breeze, fans, A/C. Our rather large home didn't have A/C when we bought it. But it did have a huge attic fan that kept the air moving throughout the entire house on hot days.…
Fans do you no good when the humidity is above a certain point. You’re also losing a lot of water to evaporation from sweating if it is doing anything at all. There is a reason why Singapore switched to AC pretty much everywhere except old hawker centers, and why it’s not alone.
That would be related to the wet-bulb temperature. If the wet-bulb temperature is more than about 30°C, then I'd consider the area to be uninhabitable. (A wet bulb temperature of 35°C is considered lethal).
Fans are surprisingly effective as most people are stationary and thus produce almost a bubble of high humidity around themselves. Fans disperse that localised high humidity and allow people to effectively reduce their temperature through sweating/evaporation.
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So we've been stupid "solar oven" buildings for 50 years while climate scientists were warning against extreme weather events and, now that said extreme event arrives, the best we find is to rush to aircon. Seems pretty short-sighted to me.
Yup. Built a house in 2016 in Belgium. Perfectly insulated. You didn't have to run heating in winter. Kept it all inside. Also, it overheated instantly.
Also tangentially many Europeans seem to be confusing insulation with inertia, saying their house is correctly insulated against the heat when in fact it’s just a stone building that is taking more time to heat up. At the extreme you have European churches buildings that are very badly insulated but stay cold most of summer because of all the stone mass.
One thing Europeans have yet to realize is that good insulation only works when the nights are cold enough to evacuate the heat before it reaches the inside, and that during a strong heatwave there is no adaptation possible, AC is needed.
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Fans do you no good when the humidity is above a certain point. You’re also losing a lot of water to evaporation from sweating if it is doing anything at all. There is a reason why Singapore switched to AC pretty much everywhere except old hawker centers, and why it’s not alone.
> Fans do you no good when the humidity is above a certain point. That would be related to the wet-bulb temperature. If the wet-bulb temperature is more than about 30°C, then I'd consider the area to be uninhabitable. (A wet bulb temperature of 35°C is considered lethal). Fans are surprisingly effective as most people are stationary and thus produce almost a bubble of high humidity around themselves. Fans disperse th…
And getting worse.
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It's not just that France isn't installing them. It's that laws prevent installing them, and laws keep offices and schools warm on purpose. The prevention comes to play with massive restrictions around visibility of the units on facades in order to preserve character of apartment buildings and beauty. In some cases these can apply to private homes, too. Additionally you have the copropriété, where you need the majori…
Ah yeah, my grandparents never used AC even in the car. They just cruised with windows down even in the height of summer: they had the most bizarre ideas that it was somehow "bad for the heart". But cooking with lard was okay for them and it was "healthy". At least in Germany you have a right to install an AC and the community can't say no. Even if they do the courts can overturn that decision.
2 minute video on the Mcgovern Committee and USDA 1977: https://www.youtube.com/watch?v=xbFQc2kxm9c
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There's a lot to criticise of every country, but we're trying. The US is not trying (*) https://en.wikipedia.org/wiki/Paris_Agreement#/media/File:Pa... * Not aimed at all the wonderful, sane and reasonable people of the USA.
> There's a lot to criticise of every country, but we're trying. The US is not trying (*) I'd argue that it's a bit misleading to treat the US as a single entity for this topic. The population is deeply divided on issues like this one.
The inability to perceive that ones politics is destroying ones societies poorer members and thus in retaliation they destroy the societies structure is monstrous
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House build after WW2 are terrible. I miss my ancient Berlin house with 80cm thick walls. Cool in summer, warm in winter.
Room roofs as high as 3.5 m.. altbau
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If you think that every data center is now a closed loop system enjoy your propaganda. Colossus 1 and 2 still use open loop systems. And with the case of blow down water that's "returned" it's not usable due to the use of concentrated salts (1,200 to 6,000 mg/L). In your mind this is a closed loop system of clean water. It is not. And as DCs have less and less discharge there is more and more solid waste produced. Yo…
Very interesting how your enlightening comments about dirty AI data centers are being downvoted. Pro-Musk, pro-AI bots and shills trying to keep the smoke screen going?
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What?
"We keep making predictions that never comes true maybe one day we'll be right when I won't be around to find out"
five years later: "HAHA THE DOCTORS ARE ALL STUPID AND WRONG!"
five more years: dead, of cancer
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This is an incorrect way to frame the impacts of temperature increases. 1.5, 2, 3C makes extreme events like the one you stated significantly more likely in a probabilistic sense. The ability of adapt is in part driven by frequency of extreme events as much as it is adaptability to specific thresholds. We are already experiencing deadly heat bulb events at current warming levels, the impacted areas and frequency of t…
I agree, but what we aren't currently really seeing (at least I've not seen it) is a heat dome killing off a herd of cattle or a crop. That's the sort of event that becomes much more likely if not inevitable as the temperatures increase.