Live data from Hacker News

Rising carbon dioxide levels now detected in human blood

phys.org

41–50 of 166 posts

Re: Rising carbon dioxide levels now detected in human blood

#41
post #6

Plants grow faster (but not better) with more Co2 I wonder if this could be related to global obesity ?

There's an oversimplified assumption here that the plants will be less nutritious, and so people will eat more calories to make up for the deficit. I suspect the presence of protein, fats and sugars influence the hormone production regulating appetite far more than these changes account for. I would expect the same health issues to be affecting other animal species in just as drastic a measure as humans if it were tr…

It's not just an assumption, there is research that shows this.

For example: https://www.scientificamerican.com/article/as-co2-levels-ris...

More specifically, yes, protein content decreases with rising CO2 levels. Maybe not enough to cause obesity on its own, but enough to be a compounding factor. Especially when your staple is, say, rice -- which is what the paper linked above looks at.

Re: Rising carbon dioxide levels now detected in human blood

#42
post #3

"Yes, the planet got destroyed. But for a beautiful moment in time we created a lot of value for shareholders.“

Clean tech will save the day (low carbon generation, batteries, electrification trajectories and rate of change, broadly speaking), but the global fossil industry will need to be dismantled faster than some will like. It is a matter of survival, not politics or economics. My hunch is there are not many globally who want to suffocate while trying to exist for shareholder value.

> My hunch is there are not many globally who want to suffocate while trying to exist for shareholder value.

I hate this kind of hyperbole because it obscures the real dangers. No one is going to suffocate any time soon. Atmospheric CO2 is around 450ppm. The CO2 in a meeting room of a typical office can easily reach 1500ppm or more[1]. Is everyone in meeting rooms "suffocating"?

[1] https://www.popsci.com/conference-carbon-dioxide-tired-offic...

Re: Rising carbon dioxide levels now detected in human blood

#43
post #5

Higher carbon dioxide makes us dumber: https://pmc.ncbi.nlm.nih.gov/articles/PMC7229519/ I wonder how long before in-home CO2 extraction becomes a thing.

It will be mandated by the state of California for new homes and office buildings.

Re: Rising carbon dioxide levels now detected in human blood

#44
post #12

> Humans evolved in an atmosphere containing roughly 280–300 ppm of CO₂. The average annual increase over the past decade has been about 2.6 ppm per year, with 2024 recording a 3.5 ppm rise. So currently we're at 428 with 3.5 increase per year, yeah, that's scary if it doesn't slow down soon. Makes you wonder about what indirect health side-effects that could have on us.

I'm not a doctor, but I reckon it'd be same as any other case of carbon dioxide poisoning.

It makes us dumber and dumber.

Re: Rising carbon dioxide levels now detected in human blood

#45
post #26
post #21

Earlier quoted context omitted.

You do us all a disservice by saying “the politicians”. The REPUBLICANS are attempting to ignore reality and burn more fossil fuels. Nobody else in America. Name the problem, otherwise you’re implying it’s a bipartisan effort.

Obama takes credit for U.S. oil-and-gas boom: ‘That was me, people’ https://apnews.com/article/business-5dfbc1aa17701ae219239caa... You have to be born yesterday to believe that Democratic leaders haven't merely hand-waved and virtue-signaled about global warming for decades. I realized this back in the 1990s. Democrats have superior rhetoric, and they are less openly hostile, but their long record of doing nothing t…

You do the people causing this problem a great service with false equivocations like this. It is clear one group would prefer us to ignore the problem and do nothing at all - in fact encourage the problematic behavior - and the other would very much like to take action on the issue if they had the political power.

Re: Rising carbon dioxide levels now detected in human blood

#46

Earlier quoted context omitted.

Clean tech will save the day (low carbon generation, batteries, electrification trajectories and rate of change, broadly speaking), but the global fossil industry will need to be dismantled faster than some will like. It is a matter of survival, not politics or economics. My hunch is there are not many globally who want to suffocate while trying to exist for shareholder value.

> My hunch is there are not many globally who want to suffocate while trying to exist for shareholder value. I hate this kind of hyperbole because it obscures the real dangers. No one is going to suffocate any time soon. Atmospheric CO2 is around 450ppm. The CO2 in a meeting room of a typical office can easily reach 1500ppm or more[1]. Is everyone in meeting rooms "suffocating"? [1] https://www.popsci.com/conference-…

Yes in one way or another

Re: Rising carbon dioxide levels now detected in human blood

#47
post #27
post #3

"Yes, the planet got destroyed. But for a beautiful moment in time we created a lot of value for shareholders.“

[flagged]

Two things can both be true. Fossil fuels greatly improved quality of life for a large number of people in the past few centuries. And their continued use on a massive scale now threatens to hurt a lot of people.

Re: Rising carbon dioxide levels now detected in human blood

#48

Earlier quoted context omitted.

Clean tech will save the day (low carbon generation, batteries, electrification trajectories and rate of change, broadly speaking), but the global fossil industry will need to be dismantled faster than some will like. It is a matter of survival, not politics or economics. My hunch is there are not many globally who want to suffocate while trying to exist for shareholder value.

> My hunch is there are not many globally who want to suffocate while trying to exist for shareholder value. I hate this kind of hyperbole because it obscures the real dangers. No one is going to suffocate any time soon. Atmospheric CO2 is around 450ppm. The CO2 in a meeting room of a typical office can easily reach 1500ppm or more[1]. Is everyone in meeting rooms "suffocating"? [1] https://www.popsci.com/conference-…

Also, these CO2 canaries are neat. We got one for our office https://a.co/d/02EKUci9

Re: Rising carbon dioxide levels now detected in human blood

#50
post #27

Earlier quoted context omitted.

[flagged]

Never heard this take before. Care to elaborate? It seems like crop failure and disease are the typical causes of food shortages, if not outright human logistical failures. Sounds like saying pouring gasoline on a tiny fire is the only reason we aren't cold (ignoring that more firewood would be the solution). An unsustainable solution is not in-fact a good solution. So if your assertion is correct, then we should all…

I think their point is more along the lines of the energy availability of Fossel Fuels allows for the Mass Farming and Construction that we do, not so much that we can pour it on a fire in place of wood.
Post reply on HN