@hankgreen: Massively under-reported science story because there's so much going on right now but...it turns out that we might have figured out what's causing this very scary spike. Quick thread, on how WE'VE BEEN A...…
Scientists have discovered that the recent spike in global temperatures may be caused by a reduction in sulfur dioxide pollution from shipping vessels. Ships have long emitted sulfur dioxide, which cools the planet by seeding clouds and reflecting sunlight. However, new regulations that limit sulfur in ship fuels took effect in 2020, leading to a loss of this cooling effect equivalent to a large volcanic eruption each year. Models show this reduction in sulfur dioxide pollution can explain the extra warming seen in the North Atlantic. While pollution is bad, the new regulations provide a natural experiment that gives insight into how intentional geoengineering could potentially combat climate change in the future.
A while back there was a round of interest in the possibility of countering global warming by using specialized high-altitude planes to spray calcium carbonate particulates into the upper atmosphere, and it was calculated that global warming could be countered with an ongoing expenditure of $2 billion per year. That’s peanuts for a country like China, so if climate change starts causing them significant identifiable losses I wouldn’t be at all surprised if they gave it a go.
You are not logged in. However you can subscribe from another Fediverse account, for example Lemmy or Mastodon. To do this, paste the following into the search field of your instance: !news@beehaw.org
Breaking news from around the world.
News that is American but has an international facet may also be posted here.
Guidelines for submissions:
Where possible, post the original source of information.
If there is a paywall, you can use alternative sources or provide an archive.today, 12ft.io, etc. link in the body.
Do not editorialize titles. Preserve the original title when possible; edits for clarity are fine.
Do not post ragebait or shock stories. These will be removed.
Do not post tabloid or blogspam stories. These will be removed.
Social media should be a source of last resort.
These guidelines will be enforced on a know-it-when-I-see-it basis.
Sounds like something China can pioneer and that the West will adopt a decade or so later after China shows it really does have no major side effects.
A while back there was a round of interest in the possibility of countering global warming by using specialized high-altitude planes to spray calcium carbonate particulates into the upper atmosphere, and it was calculated that global warming could be countered with an ongoing expenditure of $2 billion per year. That’s peanuts for a country like China, so if climate change starts causing them significant identifiable losses I wouldn’t be at all surprised if they gave it a go.
It already is, looking at recent flooding.