- cross-posted to:
- climate@slrpnk.net
- cross-posted to:
- climate@slrpnk.net
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I have a real issue with this.
We have been (detrimentally) geoengineering the climate for centuries by pumping out co2 and that has been done by nations wherever and whenever they have wanted.
If a country wants to start a program of beneficial geoengineering why should that be stopped?
Because we don’t know wtf we’re doing when it comes to geoengineering?
You are right, best do nothing as we slowly die.
We know what we need to do (stop using fossil fuels for starters), but corporations and governments won’t do it, so yeah, we’re probably pretty screwed.
It might backfire and cause more problems.
How? All the ideas that are being looked at come from natural cycles that are being exploited. No one is talking about releasing some chemical that no one understands up there they are talking about causing algae blooms, inducing acid rain in the middle of the oceans, and painting stuff white. This isn’t cutting edge. Also it isn’t a one and done deal, it will require constant infusing of cash.
We know that sulfur and dust in the area lowers temperatures. The experiment has been run before. Look at average temperatures and see what happens around the WW2 era where steel has to be made using cheap dirty sulfur rich coal quickly.
We know painting stuff white makes it reflect more energy.
We know that alga eats a lot of carbon and sinks. We also know that alga is always limited by a few trace elements it can’t get enough of.
None of this stuff is new. All of it is going to cost a fortune every single year. Presumably if somehow someway painting stuff white made things go crazy we would stop spending tax dollars on it.
Also consider climate cycles such as ice ages. Imagine a coalition finds a wildy successful heat reduction strategy and it impacts well beyond what was anticipated? How would things go if we accelerrated glaciation down to the gulf of Mexico? The Earth’s wobble and axial tilt are part of this process over incredible periods of time… CFC’s and the ozone are a good example of rapid and unanticipated results of human inputs. No easy answer even with stakes as high as they appear.
Do we know what will happen if do nothing?
I’m not arguing to do nothing, just attempting some clarity on the broader strokes of the issues. Much of our understandings of natural processes are still immature and incomplete - appreciating that fact should be a guiding principle for any near-to-hand actions.
Luckily, we’re experts at rising the temperature. If we accidentally bring in the next ice age early, it’s back to coal.
Well except we burned a shit ton of it already and could struggle to burn enough without seeding thicker clouds thus making the glaciation worse.
Part of the problem is cloud coverage acts as a reflector and if you get enough of it how do you get clear skies again? To stop it?
Agreed. Hell, when we decided that the global shipping industry should not use the dirtiest fuel possible, the lack of sulfur oxide being emitted raised the ocean temperature quite a bit almost immediately. There are things we can do that will have the same effect without the massive negative consequences that sulfur oxide carries.
Well they are allowed to use it they just have to use scrubbers and even then it is the conditions of the water and how close too shore. It was to stop acid rain.
Considering we can’t even get heads or state or imagining-they’re-heads-of-states to not:
- Wage war on neighboring countries.
- Try to usurp their own government.
- Promote wild conspiracy theories.
- Be ragingly against personal freedom even in the US, the countries that is supposedly all about that.
- Be ragingly anti-intellectual.
… I really have exactly zero hope we can do shit-all about climate issues. We can’t even handle far smaller and far more benign (by comparison) issues on a national level, what hope do we have to handle things that require everyone to pull in the same direction, on an international one.
How many trees did you plant this week? I planted around 10 so far.
What is it about trees? Any time someone posts something about the problems of some plans to fight climate change on Lemmy or Reddit, someone posts a reply like yours. And every tine news about climate activists are posted, someone else posts something about that they had better planted some trees. Planting trees is a commendable effort and a great first step, but you do know that (if I understand earth’s climate history correctly) earth was covered in trees when CO2-levels were as high as today or even higher? Only by sequestrating fallen trees underground through sedimentation (and converting them to coal and later oil) did CO2-levels in the atmosphere begin to drop.
I make biochar, how much biochar have you made this week?
I live in a tiny apartment in the middle of a city.
Where the fuck would I make biochar.
A community garden.
This is the best summary I could come up with:
Geoengineering is highly controversial, but discussions of its feasibility are gathering pace as the impacts of extreme weather, driven by climate breakdown, grip the planet.
Governments should also allow academics to investigate the possibilities of geoengineering, chiefly in the form of solar radiation management, which involves attempting to reduce the amount of sunlight striking the Earth’s surface, for instance through whitening clouds to be more reflective, or setting up mirrors in space.
“Geoengineering, like direct air capture, is a deeply uncertain techno-solution that fossil fuel executives love to push to take pressure off their core business of selling oil, gas, and coal, which, as more and more people are realizing, is causing rapid and irreversible destruction of our planet’s habitability,” he told the Guardian.
As a climate scientist, my worst nightmare is continued fossil fuel expansion accompanied by solar geoengineering followed by termination shock.
Mark Maslin, professor of earth system science at University College London, who was not involved with the panel, said many scientists had strong feelings on geoengineering.
He added: “A strong international moratorium against solar radiation management is required, to ensure no country or company tries to ‘fix climate change’ with disastrous consequences.”
The original article contains 938 words, the summary contains 196 words. Saved 79%. I’m a bot and I’m open source!
I’m going to assume they aren’t counting industry in that.
Look! My solar panels are 23% efficient! 😀
And what happens to the other 77%? It turns into heat! 🥵
If your panel was not there, what % would turn into heat?
Depends: Did you whitewash your roof?
Don’t forget that solar panels also displace other energy sources, such as burning coal.
How much heat does that produce? And then there’s co2…
For the right price, I’d buy them. But they’re not the World’s panacea - just a medium term fix, not to be over used.
