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I don’t see mention of the recent changes in shipping law, and how boats traveling near the Arctic circle (and spewing emissions) had a cooling effect. Is there any truth to that?

They’ve reduced the amount of Arctic shipping and the world heated up; this is what commenters predicted. I wonder why I don’t see articles mentioning the phenomenon.

https://today.uconn.edu/2018/09/ships-clouds-mean-cooling-ar...

This discusses the effect I’m mentioning.

Arctic shipping was greatly reduced post Covid along with new regulation cutting emissions amongst all boats

> and how boats traveling near the Arctic circle (and spewing emissions) had a cooling effect. Is there any truth to that?

Kind of, though it's pretty localised.

> They’ve reduced the amount of Arctic shipping

Eh? Where are you getting that? Arctic shipping has increased _dramatically_ over the last decade.

> and the world heated up; this is what commenters predicted

No-one sensible predicted this. At most people might have claimed that if you cut shipping in the arctic dramatically (which hasn't happened) then there would be _localised_ warming.

> I wonder why I don’t see articles mentioning the phenomenon.

I think because it's something you half-remembered; it's based on a false premise (arctic shipping is increasing, not decreasing), and the effect isn't as big/global as you seem to think.

https://twitter.com/hankgreen/status/1687535525169930241

I feel like you’re the kinda guy who needs to hear a credible fellow like ‘Hank Green’ say what I’m trying say to understand.

I don’t want or have time to write fully researched opines. On message boards you will find comments are speaking to something true but are not well researched because of the inherent format and time commitment of the writer.

There is a great deal of Alpha online and not everyone is going to give you 5 bullet points with all the articles backing up their position. You’ll miss out on correct angles if it takes you a book report to realize the book is good.

‘No one sensible could have predicted this’

There are lots of smart people beside yourself who see things you don’t, abs make great sums of money on their guesses. They don’t need to convince you to care when you seem more motivated to find out why you shouldn’t

It's not uncommon to have warm days in winter down here, but lately we've had wild temperature swings every week or two. It feels like a very wild autumn.

We used to have what we call "Veranico de maio" (small summer in May), but this year we've had this in May, June, July, and now August.

And we've also had some very strong rainstorms.

Ireland had one of it's warmest May on record (several weather stations reported it as the warmest), and July was the wettest on record.
The Hunga-Tonga eruption is a significant contributor. https://www.jpl.nasa.gov/news/tonga-eruption-blasted-unprece...
That doesn’t follow from your link.
"This eruption could impact climate not through surface cooling due to sulfate aerosols, but rather through surface warming due to the radiative forcing from the excess stratospheric H2O." ...from the abstract of the study referenced in the article. https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/202...
There’s a very long way from “could impact climate” to “is a significant contributor”.
Some men need to be bit by a dog, told the breed of the dog, the time they were bitten by the dog, which extremity the dog bit, whether one should panic after being bitten by a dog, and if the dog did in fact have teeth before knowing they have been bit by a dog.
It's been a very warm winter in Australia also.

But: 100 degrees what?

https://degreeswhat.com/?100

Every temperature in the article is in the form X degrees (Y Celsius) — neither of which is correct. Fahrenheit is used once. WTF? Just use °F and °C like normal people.

> Fahrenheit is used once. WTF? Just use °F and °C like normal people.

Normal people don't do that. The US standard is degrees Fahrenheit, so "degrees" is typically used without qualification, and it's understood to be Fahrenheit. If you want to talk Celsius temperatures, you have to be more specific unless the context makes it super clear you're only using Celsius.

The surprising thing is they even bothered to use Celsius temperatures.

In the context of weather, it should be implicitly clear that 100° is not in Celsius

That would be spectacularly bad, and everyone around would be dead