There won't be any ingenious, miracle carbon removal solution and various proposals may even be flirting with ecological disasters of planetary proportions. Anything that expands our footprint in order to mitigate our footprint is a dubious direction. Reminds of an apprentice wizard that panics and invokes a sequence of spells, each one worse than the other. Discussions and thinking around sustainability underestimat…
>There won't be any ingenious, miracle carbon removal solutions OK but I think there will be.
Could seaweed be the 'fastest and least expensive' tool to fight climate change?
131–140 of 199 posts
Re: Could seaweed be the 'fastest and least expensive' tool to fight climate change?
#132What does success look like in the climate change fight? Is there a point where victory can ever be declared? Is that a "correct" temperature (what is it) or a CO2 PPM number (what's ideal)? When industry and scientists stop lobbying for money to fight it?
If we bring global CO2 back down to 280 ppm (like it was in the year 1700[1]), then a lot of today's farming methods will have substantially lower yields. Our modern crops need those higher CO2 levels to grow fast[2]. Without other ways to grow more food, people will starve. [1]: https://www.co2levels.org/img/graph_grid.png [2]: https://extension.okstate.edu/fact-sheets/images/greenhouse-...
Re: Could seaweed be the 'fastest and least expensive' tool to fight climate change?
#133Most of the ocean is desert lacking the limiting nutrients of nitrogen, phosphorous and iron. If we can cheaply fertilize large swathes of the ocean with these limiting nutrients in a controlled manner, then this could trigger massive algae blooms that on sinking sequester massive amounts of carbon.
Algae blooms result in de-oxygenated water, no? (Among other consequences.) https://www.cdc.gov/habs/environment.html
Re: Could seaweed be the 'fastest and least expensive' tool to fight climate change?
#134Earlier quoted context omitted.
While I agree, how do you recommend we reduce emissions immediately, which is basically when it needs to happen. It seems like largely people just don't care about the environment on a "general global" scale. There are pockets are people/groups/countries that do. But on average people don't. So that leaves really one solution, which is attempting to reduce the amount of existing emissions to stop the rise to some deg…
> It seems like largely people just don't care about the environment on a "general global" scale. The issue is not really people. The worst emitters are out of reach from us. It’s good to make people more conscious of their environmental impact but what good does it really make when what is saved is a minute of energy production by the average Chinese coal power plant.
People who want food, transportation, electricity, heat, concrete, etc.
Re: Could seaweed be the 'fastest and least expensive' tool to fight climate change?
#135Earlier quoted context omitted.
How? Unless you get a breakthrough with fusion, I just don’t see us finding the energy to make carbon removal feasible. You either need huge tracts of land to power forests, or massive amounts of energy from another source to do it with tech, and neither of those is going to be the easy fix people believe is coming.
It's hard to imagine how someone can look at the track record and then think "impossible! we will never figure it out!" when human history is basically a detailed record of us constantly "figuring things out" that previously seemed impossible. When something has yet to be figured out you are supposed to be baffled because the part where it all make sense doesn't come until after we figure it out. It doesn't guarantee…
Re: Could seaweed be the 'fastest and least expensive' tool to fight climate change?
#136Earlier quoted context omitted.
Looking at the technology trajectories of PV and wind it is pretty clear that within the next 5 to 15 years many countries will start seeing substantial extra electricity being generated by the build out of renewables. Because countries will aim to cover most electricity by renewables and thus overprovision them for dark windless winters, it is likely that there will be massive amounts of energy available during the…
So, how do you apply this to carbon sequestration in seaweed ?
Re: Could seaweed be the 'fastest and least expensive' tool to fight climate change?
#137Earlier quoted context omitted.
I think it's interesting that Homo sapiens evolved during the last ice age where the climate was significantly different than today's climate. We already "won" a major climate change once despite having a level of technology barely better than sharp sticks and pelt cloaks. Instead of defining success based on climate stability itself, I think it makes more sense to define success in terms of what we care about: a thr…
> catastrophic loss of human population At the same time, the population has been booming to the point that close to half of the humans who ever existed are alive on Earth right now. This is a significant part of the current crisis actually.
Re: Could seaweed be the 'fastest and least expensive' tool to fight climate change?
#138There won't be any ingenious, miracle carbon removal solution and various proposals may even be flirting with ecological disasters of planetary proportions. Anything that expands our footprint in order to mitigate our footprint is a dubious direction. Reminds of an apprentice wizard that panics and invokes a sequence of spells, each one worse than the other. Discussions and thinking around sustainability underestimat…
>There won't be any ingenious, miracle carbon removal solutions OK but I think there will be.
And even if such a miracle drug did exist, if seems like the better solution is to simply lead a healthier lifestyle to begin with.
Re: Could seaweed be the 'fastest and least expensive' tool to fight climate change?
#139Earlier quoted context omitted.
> It seems like largely people just don't care about the environment on a "general global" scale. The issue is not really people. The worst emitters are out of reach from us. It’s good to make people more conscious of their environmental impact but what good does it really make when what is saved is a minute of energy production by the average Chinese coal power plant.
Most of the emissions are people-related: https://www.epa.gov/ghgemissions/global-greenhouse-gas-emiss... People who want food, transportation, electricity, heat, concrete, etc.
As you can see the most emitting sector is energy production. That’s mostly driven by countries using coal as energy source and countries with significant oil and gas reserves. It is a lever at the strategical and political level. Same with industry where gains are mostly achieved through regulation.
Construction is direly in need of innovation regarding its emission but unless you want people to sleep in the street remains somewhat unavoidable.
That leaves agricultures where people have a huge role to play by consuming less meat and somewhat transportation (even if that’s actually extremely linked to the offer of effective public transport).
For the rest and as much as I would like to believe in it, most actions I see people doing are actually fairly inconsequential in the grand scheme of things. I’m a bit annoyed by it because it somehow lulls people into thinking they are doing something for the problem while the actual issues stay unaddressed.
Re: Could seaweed be the 'fastest and least expensive' tool to fight climate change?
#140Earlier quoted context omitted.
>There won't be any ingenious, miracle carbon removal solutions OK but I think there will be.
In the context of the post you're replying to, that's like believing there will be a miracle pill so you can eat whatever you want, however much you want, drink as much alcohol as you want, and the magic pill will prevent obesity, cancer, heart disease, and liver failure. And even if such a miracle drug did exist, if seems like the better solution is to simply lead a healthier lifestyle to begin with.
We should be pursuing fusion as if the survival of the planet depends on it…because it is likely that it does.