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(Phys Org2)   Terraform old, no new   (phys.org) divider line
    More: PSA, Temperature, Celsius, Fahrenheit, Global warming, wet-bulb temperature, general idea, Absolute zero, global warming  
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978 clicks; posted to STEM » on 08 Mar 2021 at 6:20 PM (5 weeks ago)   |   Favorite    |   share:  Share on Twitter share via Email Share on Facebook



19 Comments     (+0 »)
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2021-03-08 4:12:19 PM  
I bet:

If the warming  cap of 1.5 C  is the goal, Geoengineering (teraforming) will eventually be required.
 
2021-03-08 6:30:54 PM  
Meh, I already bought a plot of land in Greenland.
 
2021-03-08 6:46:25 PM  
CRISPR me up a more heat tolerant body.
 
2021-03-08 6:49:50 PM  
This is one big question, and a lot more difficult and complex than news articles suggest. Global warming is not uniform, and the tropics don't react the same way as the Arctic. I think "uninhabitable" is a strong word and I think a lot of people would use that to describe Phoenix or Saudi Arabia right now.

In any case, it's clear the outcome of letting it continue to get worse will be very, very bad. So yeah. Geoengineering is what we've been doing constantly, both wittingly and unwittingly, and so far the track record is not great. Part of the reason Lake Erie gets nasty algae blooms is that we drained pretty much all of the wetland swamp that cleaned the water. In WA, the reason the salmon are dying in Puget Sound is that the rivers have been modified and the areas around the rivers became so urbanized that it badly affects their ability to be a normal ecosystem. Florida drained half the Everglades and has constant problems because of it.

Hopefully we can limit warming, and hopefully we limit the amount of dumb things we do in the process.
 
2021-03-08 7:24:53 PM  

adamatari: think "uninhabitable" is a strong word and I think a lot of people would use that to describe Phoenix or


It'shiat 87°F here in Phoenix today.  Was breaking 80 before February was over.  Expecting 120 a couple times before summer is out.

adamatari: Hopefully we can limit warming, and hopefully we limit the amount of dumb things we do in the process.


Well, it's not quite too late just yet, but the regressive idiots who refuse to change are already killing us all.
 
2021-03-08 7:29:40 PM  
Its amazing that we are o  track to make parts of the world uninhabitable. But at least the boomers had nice houses abd cushy retirements, and we had our phones to distract us.
 
2021-03-08 7:37:21 PM  
A 35C wetbulb is 95F which is far and away higher than I have ever seen.  The highest wetbulb I have ever designed for was in Singapore and that was 86F.
 
2021-03-08 7:59:57 PM  

yohohogreengiant: I bet:

If the warming  cap of 1.5 C  is the goal, Geoengineering (teraforming) will eventually be required.


It's required now.  On an episode of the podcast "Unfold," a UC Davis climate expert (the most optimistic climate guy one of the reporters knew)  said that the planet is past the point where simply ceasing to add carbon to the atmosphere saves the global biome.  He said that trees, soil renewal, and high-tech carbon-removal tech. are all required to save us.
 
2021-03-08 8:07:27 PM  

SirDigbyChickenCaesar: A 35C wetbulb is 95F which is far and away higher than I have ever seen.  The highest wetbulb I have ever designed for was in Singapore and that was 86F.


We're already starting to see short intervals around shallow Arabian seas with wet bulb temperatures reaching 98F in the summer. Places right by a body of very hot water, where the air temperature will reach 120+F at the same time it reaches "Louisiana swamp in August" levels of humid.

morg: CRISPR me up a more heat tolerant body.


That would be an absolutely gigantic exercise in genetic engineering if you want to do more than add 1 or 2 degrees of internal body temp.

All of the human body's enzymes are designed to work at about 98 +- 2 degrees. Most of them apparently largely stop working at around 103-4, which is why fevers that reach that point are extremely dangerous if not reduced.

Plus, increases in body temperature are correlated with (iirc) something like a 10% change in basal metabolic rate for every *F, with a corresponding mandatory change in food consumption to power it. Not saying it can't be done, but it's not nearly as simple as CRISPRing in "+heat tolerance".
 
2021-03-08 8:38:06 PM  

adamatari: I think "uninhabitable" is a strong word and I think a lot of people would use that to describe Phoenix or Saudi Arabia right now.


They're talking about the wet-bulb temperature. "Uninhabitable" literally means "you will die if you're outside long in those conditions, regardless of how well-hydrated and ventilated you are". Phoenix and general Saudi Arabia aren't close to those conditions (Indian heatwaves get nearer). I've got hiking in the Arizonan summer, around 110 degrees. I don't know why I did that, but if you bring your weight in water you'll be ok.
 
2021-03-08 8:51:40 PM  
Bah.

Those who can't afford air conditioning will have to become crepuscular to survive.  Or full-on nocturnal.

We should start selective breeding of people with good night vision.
 
2021-03-08 9:20:52 PM  

erik-k: That would be an absolutely gigantic exercise in genetic engineering if you want to do more than add 1 or 2 degrees of internal body temp.


Seems about as viable as getting all the governments of the world on the same page and compliant.
 
2021-03-08 10:03:45 PM  
Well that's why we invented swamp coolers and AC.
 
2021-03-08 10:51:51 PM  

Fano: Well that's why we invented swamp coolers and AC.


This is explicitly about the fact that under these conditions a swamp cooler could *no longer work.*

The wet bulb temperature is the temperature the current air would reach if it evaporated water until reaching 100% humidity. In other words, the lowest temperature a swamp cooler can ever reach AND the lowest skin temperature that can ever be achieved by evaporating sweat.
 
2021-03-08 11:25:39 PM  

Chromium_One: adamatari: think "uninhabitable" is a strong word and I think a lot of people would use that to describe Phoenix or

It'shiat 87°F here in Phoenix today.  Was breaking 80 before February was over.  Expecting 120 a couple times before summer is out.

adamatari: Hopefully we can limit warming, and hopefully we limit the amount of dumb things we do in the process.

Well, it's not quite too late just yet, but the regressive idiots who refuse to change are already killing us all.


I'll remind you how difficult it is to get people to wear a mask during a pandemic . Our research and engineering better be focused on adapting over preventing.
 
2021-03-09 2:32:59 AM  
I dunno about all tropical places but my wife's country is damn close to the equator and as long as there's a tree or porch ("gallery" in their vernacular) and some water it's way more comfortable than certain ::cough cough Georgia cough:: parts of the US.

That said holy shiat does the sun get bright when it's high, oddly enough being from New York the brightness + direct heat is strange to me because I associate squinting more with winter and being cold (snow reflects a lot of light, no leaves on most trees) than summer or hot weather.
 
2021-03-09 2:39:21 AM  
Another thing, one thing I dislike about the Caribbean is how the sun pretty much sets at 6 year round no matter what. Used to Junes where the sun sets damn near 9:30, totally worth the 4:30 bullshiat in December. That said, if the sun stayed up any longer people would roast.
 
2021-03-09 7:09:59 AM  
The best thing humanity can do for the planet is die off and leave it to the insects and other hardy species. Luckily, with humanity's short sightedness, that's exactly what will happen.
 
2021-03-09 9:45:17 PM  

Tyrone Slothrop: The best thing humanity can do for the planet is die off and leave it to the insects and other hardy species.


The less intelligent life is, the less interesting.  I think the universe is better with observers.

The best thing humanity can do is smarten up and work on making life better for longer, rather than burning it all down to make today slightly nicer at the cost of making tomorrow far worse.
 
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