Live data from Hacker News

Ocean acidification due to carbon emissions is at highest for 300m years

theguardian.com

51–60 of 150 posts

Re: Ocean acidification due to carbon emissions is at highest for 300m years

#51
post #19

> imperilling marine life, on which billions of people depend for their nutrition and livelihood Nature always win in the end! Hopefully the plunge in human population can be handled mostly by attrition.

If things get too bad for too many, I suspect the result in an increase in war and conflict.

Re: Ocean acidification due to carbon emissions is at highest for 300m years

#52
post #43

It's sad to me that this is not the top post. It seems that fact is a reflection of the problem at hand. We don't care about the oceans as much as we care about Twitter. :(

I find it incredibly sad it has made the top post.

The article does not link to any peer review studies to prove it's point, which to me means it's probably bunk, taking a know issue and enlarging it to sensationalise.

And it's sad people fall for this.

Re: Ocean acidification due to carbon emissions is at highest for 300m years

#53

The short-term scenario is not good, but from the little I know about aquatic biology/chemistry, it might not be as catastrophical as the article pictures it. Increased CO2 levels should just cause algae/cyanobacteria blooms, which will balance CO2/O2 levels back again and foster primary consumers (solving over-fishing as a bonus). Also, H2CO3 gets buffered by all the Ca/Mg content in the ocean, so I don't think it's…

Your right in the sense that there is nothing catastrophic from a the perspective of geological time. There have been mass extinctions before. The problem is that we would like to continue living in an environment similar to what we evolved in, and we would like to continue to have large amounts of bio-diversity and biological services available on a timeline that is useful to us. There is nothing particularly magical about the environment we want to live in, other than it happens to be about what it would be now if not for recent human actions. Unfortunately, those actions didn't just change the system, they re-introduced raw materials that have previously been removed from the system. There is no reason to believe that the new equilibrium is the same as the old one.

An interesting corollary to this is the idea that the natural environment is itself unsustainable. For billions of years it has been using up the planets supply of carbon and trapping it in what is now called fossil fuels. If this continues unchecked, we will run out of available carbon and life on this planet will die off. Thankfully, we humans have averted this catastrophe by finding a way to recycle the formerly lost carbon and return it to the environment. If only we had a large number of planets at varying stages of having life (including being long dead).

Re: Ocean acidification due to carbon emissions is at highest for 300m years

#55
post #34

They talk about the oxygen content falling by 7% by 2100. This makes me wonder: let's assume the worst and earth is headed for a mass extinction event. How long do these events usually take? Are they slow processes, or does everything just die one day?

What would happen is that the rate of biodiversity drops drastically, and organisms that are simple and adaptable (like cockroaches, algae, jellyfich, certain classes of bacteria, small mammals, urban birds) adapt and thrive and consume the rest of the flora and fauna, and permanently adapt their environments making the situation extremely fragile for more complex and delicate birds and larger vertebrates. Also, the…

>organisms that are simple and adaptable

I would be careful with the word simple. Adaptable is the important component, and that seems to be related more to being small and not particularly specialized. Simple sounds like a description of the amount of genetic data the species contains. It has been a while since I took biology, but if I recall correctly, even small and adaptable species have a lot of genetic data. When a mass extinction event happens, once the environment stabilizes, the doors are open for large animals again, and the small ones already have the genetic complexity needed to fill those niches relatively quickly.

Re: Ocean acidification due to carbon emissions is at highest for 300m years

#56
post #11

Earlier quoted context omitted.

Not without a significant energy expenditure. But most of our energy sources of course produce CO2 and other products.

I guess the Scifi question is can you build a nuclear ship with some apparatus that pulls the CO2 out of the ocean and breaks it into C (stored on ship) and O (released into atmosphere)?

What's wrong with solar powered floaties to do that job? We could make them in the shape of yellow rubber duckies!

Re: Ocean acidification due to carbon emissions is at highest for 300m years

#57
post #42

While I recognise this question might be abrasive, I feel compelled to ask it. Why does this belong on Hacker News? This isn't technology. This isn't legal news (i.e. software patents). This is in no way related to Hacker News. I have no problem with interesting articles being upvoted, but I feel we need a place to put these or a tagging system similar to lobsters.

HN attracts some highly intelligent and resourceful people who do things that are radical and can change the way all other people do things. And I think these are the very people who can help to fix these sorts of real world problems.

Re: Ocean acidification due to carbon emissions is at highest for 300m years

#58
post #42

While I recognise this question might be abrasive, I feel compelled to ask it. Why does this belong on Hacker News? This isn't technology. This isn't legal news (i.e. software patents). This is in no way related to Hacker News. I have no problem with interesting articles being upvoted, but I feel we need a place to put these or a tagging system similar to lobsters.

> Why does this belong on Hacker News?

You may want to re-read the guidelines.

> On-Topic: Anything that good hackers would find interesting. That includes more than hacking and startups. If you had to reduce it to a sentence, the answer might be: anything that gratifies one's intellectual curiosity.

> I have no problem with interesting articles being upvoted

What topics do you think should be on HN?

Post reply on HN