Live data from Hacker News

In Karachi, hot weather is normal but 44°C feels like you’re going to die

theguardian.com

51–60 of 62 posts

Re: In Karachi, hot weather is normal but 44°C feels like you’re going to die

#51

Earlier quoted context omitted.

It's a race to build self-repairing bots. Once the wealthy have it, they can just go ahead and let most people die.

self-repairing is only a small part. bots would have to be just as useful/cost-effective as poor humans. Apparently manual labour at $2/hr is cheaper than robots still.

If the environment is too hot for a human to work outside, the labor cost goes to infinity as the work will not be completed even if somebody takes the money

Re: In Karachi, hot weather is normal but 44°C feels like you’re going to die

#52

Are we going to have to start living underground? I went to Beer Caves [0] in the UK recently, where I was told that no matter the outside temperature it was always a consistent temperature within the caves (which was great for mushroom farming in the caves). Obviously living in a cave is not great, but properly built underground habitats? [0] https://en.wikipedia.org/wiki/Beer_Quarry_Caves

Flooding is a major problem with underground construction. Not the best as the ocean level rises. Air circulation is also a mess, because CO2 is heavier than oxygen. Evacuating a tall building is relatively easy; most people can go downstairs without a huge issue. Fleeing upstairs, on the other hand, is something fewer people can do. And once you get a blockade of people who can't make it, even the healthiest can get trapped.

Re: In Karachi, hot weather is normal but 44°C feels like you’re going to die

#53

Unless I see resonantly well documented rising temperatures, I'm not inclined to believe that there are climate extremes any different from what are normal variations. ( and no this does not mean we get a free pass to mess up the environment, which IMO need to be cleaned up big time). People have very short memories, and often it is the _current_ summer/winter that appears to be the harshest to them, not the one that…

There are well-documented rising temperatures. TBH, it sounds like you've made up your mind and are unwilling to examine the mounds of evidence that exist to support that. This visualization from NASA directly contradicts any notion of a generational memory explanation:

https://climate.nasa.gov/interactives/climate-time-machine/

As a bonus, it also demonstrates that climate != weather. Even as the whole map is turning red, there's still a few cooler spots in any given year. There's just less and less.

Re: In Karachi, hot weather is normal but 44°C feels like you’re going to die

#54

If I understand this right, this is not just the heat, but the humidity as well. The UK Daily Telegraph had an article[1] about how nearby Jacobabad crossed the 35C wet bulb reading threshold, at which point — according to the article — the body can no longer cool itself. I assume Karachi isn’t that bad yet. A cursory Google search showed a wet bulb reading of 27C for Karachi — still very hot but not life-threatening…

You could argue that lifting hundreds of millions of people out of poverty will make things worse. They will all want air-conditioning.

And they deserve it the same as any of us. We need to do the work so them having that same comfort we've enjoyed for over half a century doesn't destroy the environment further.

Re: In Karachi, hot weather is normal but 44°C feels like you’re going to die

#55
post #15

Earlier quoted context omitted.

The issue with wet bulb temperature is even worse. You don't need to have an average to hit anywhere close to it. Just one single event, wave of temperature over 36 degrees is most likely going to kill millions of people if it hits densely populated area with people having no infrastructure to cool themselves. And no, spraying with water will not help, by very definition.

I guess jumping into a body of water which has a cooler temperature would still help? Jumping into water which is 36 degrees or warmer wouldn't.

That's what I did when I lived without AC where it gets above 100F with high humidity. I would fill up the bathtub will cold water and cool off that way every few hours during the day when I was at home. I guess the water came from underground storage, it was plenty cold enough for that purpose.

Re: In Karachi, hot weather is normal but 44°C feels like you’re going to die

#56

Unless I see resonantly well documented rising temperatures, I'm not inclined to believe that there are climate extremes any different from what are normal variations. ( and no this does not mean we get a free pass to mess up the environment, which IMO need to be cleaned up big time). People have very short memories, and often it is the _current_ summer/winter that appears to be the harshest to them, not the one that…

There are well-documented rising temperatures. TBH, it sounds like you've made up your mind and are unwilling to examine the mounds of evidence that exist to support that. This visualization from NASA directly contradicts any notion of a generational memory explanation: https://climate.nasa.gov/interactives/climate-time-machine/ As a bonus, it also demonstrates that climate != weather. Even as the whole map is turnin…

What I'm also skeptical is about the "mounds of evidence". And no, I didn't start out as skeptic decades back.

Check back my comment (the one that you responded to) some years from now and reach out to me if needed. I skimmed through your other comments on other subjects, you'll probably get there where I currently am. A weird response to your response I know...

Re: In Karachi, hot weather is normal but 44°C feels like you’re going to die

#57

The tone of so many articles and comments online seems to be "Shrug, not much we can do about it". Or pedantically arguing about minutia. Between this and the pandemic response in so many places, I'm not so sure humanity is going to be around in a century or two. The rich will live in climate controlled domes on remote islands or ships, while billions of people starve, overheat, or fight over scraps. The global "elit…

"serious blind-spot though" Historically I think you are correct. The barbarians at the gates could topple any elite before this one.

However, I think there is an even bigger blind-spot in the general population: technology. We have a level of technology such that aggression and basic necessities can be quite easily produced with few people (drones, modern agriculture etc). They are not as dependent on us as previous elites. I think they know that when they fly to New Zealand they can keep all the refugees out quite easily, while maintaining a life with as much comfort as today.

Re: In Karachi, hot weather is normal but 44°C feels like you’re going to die

#58

Earlier quoted context omitted.

There are well-documented rising temperatures. TBH, it sounds like you've made up your mind and are unwilling to examine the mounds of evidence that exist to support that. This visualization from NASA directly contradicts any notion of a generational memory explanation: https://climate.nasa.gov/interactives/climate-time-machine/ As a bonus, it also demonstrates that climate != weather. Even as the whole map is turnin…

What I'm also skeptical is about the "mounds of evidence". And no, I didn't start out as skeptic decades back. Check back my comment (the one that you responded to) some years from now and reach out to me if needed. I skimmed through your other comments on other subjects, you'll probably get there where I currently am. A weird response to your response I know...

Out of curiosity, what makes you skeptical about the evidence?

Re: In Karachi, hot weather is normal but 44°C feels like you’re going to die

#59
post #29

Earlier quoted context omitted.

This article isn’t about the temperature reaching 44 C for a single day. Where you are sitting in 42 C weather, do you still have electricity? Because that’s mostly what the article is mostly about.

> This article isn’t about the temperature reaching 44 C for a single day. Well this is the only actual data point it makes reference to, it links to a study which makes claims about 50 years in the future, which may contain some data, but that is thrice removed if it does.

==Well this is the only actual data point it makes reference to==

I don't see anywhere in the article where it makes this reference, it's just in the headline. The article actually says "When it’s above 44C it feels like you’re going to die – I’m not making that up."

==Now it goes above 40C on an average day==

A reference to the consistency of the heat as opposed to the extremes of the heat.

Re: In Karachi, hot weather is normal but 44°C feels like you’re going to die

#60

Earlier quoted context omitted.

What I'm also skeptical is about the "mounds of evidence". And no, I didn't start out as skeptic decades back. Check back my comment (the one that you responded to) some years from now and reach out to me if needed. I skimmed through your other comments on other subjects, you'll probably get there where I currently am. A weird response to your response I know...

Out of curiosity, what makes you skeptical about the evidence?

- It seems the debate is about 0.8°C temperature rise since 1880. The figure of 0.8°C in my opinion is not statistically significant for various reasons including thermometer inaccuracies, and normal variations of temperature. There seems to be a general agreement of increase in CO2. It appears that the most significant greenhouse ‘gas’ is water vapor, about 98%. I got these figures from a talk by a noble prize winner, who got around to checking the published figures.

- Statistics can be variously interpreted unless there is a huge significant differences. The 'significant' part is completely subjective.

- Media and govt need to keep the masses engaged on distractions with the news. If govt/people were truly serious about climate (or what ever is the correct terminology) change. They would be making radical changes not tiny changes. Example of a big change work places can be moved to places where people can walk to work. example of tiny feel good change that does nothing: separate recycle form other trash.

- Changing narrative from govt, in the 60s it was global cooling, which changed to global warming, and is now labeled as climate change. Notice that most people who take up these 'causes' are young. They have no any knowledge of what the narrative was in the 60s.

- In addition to manipulating numbers, all numbers can be cooked up with impunity, this is true for corporates, scientific establishments, govts. Barring exceptions there are enough incentives to lie, and generally disincentives if one were to tell the truth.

Note I'm not claiming that there is no climate change, there is not way for me or you to know that. I do know for a fact that the environment is indeed messed up big time. The smell/taste of air/food/water/products is telling. I don't think this is debatable. The environment should be first priority and perhaps the climate change will take of itself.

Post reply on HN