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Eastern Antarctica sees record temperatures 70 degrees above normal

washingtonpost.com

61–70 of 90 posts

Re: Eastern Antarctica sees record temperatures 70 degrees above normal

#61
post #11

Earlier quoted context omitted.

Accelerated calving, meltwater flows, unsafe ice conditions for researchers would be some of the immediate consequences, in addition to the obvious long-term atmospheric and oceanic implications resulting from ice volume loss.

It's still below freezing. It's just supposed to be way colder than that.

Under the hood Antarctica is way hotter way closer to the surface than you might expect. There are volcanoes, too.

We probably want the weather to stay much colder than the negative one degree Celsius technically required for it to not melt straight away. Could make a critical difference or at least soften the impact.

Re: Eastern Antarctica sees record temperatures 70 degrees above normal

#62
post #4

https://archive.is/WHpV1

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  archive.is uses an unsupported protocol.
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  root@thinkpad:~# openssl s_client -showcerts -connect archive.is:443
  CONNECTED(00000003)
  140330990556480:error:14094410:SSL routines:ssl3_read_bytes:sslv3 alert handshake failure:../ssl/record/rec_layer_s3.c:1543:SSL alert number 40
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Re: Eastern Antarctica sees record temperatures 70 degrees above normal

#63
post #4

https://archive.is/WHpV1

This site can't provide a secure connection archive.is uses an unsupported protocol. ERR_SSL_VERSION_OR_CIPHER_MISMATCH root@thinkpad:~# openssl s_client -showcerts -connect archive.is:443 CONNECTED(00000003) 140330990556480:error:14094410:SSL routines:ssl3_read_bytes:sslv3 alert handshake failure:../ssl/record/rec_layer_s3.c:1543:SSL alert number 40 --- no peer certificate available --- No client certificate CA name…

They are intentionally blocking you.

Re: Eastern Antarctica sees record temperatures 70 degrees above normal

#64
post #4

https://archive.is/WHpV1

This site can't provide a secure connection archive.is uses an unsupported protocol. ERR_SSL_VERSION_OR_CIPHER_MISMATCH root@thinkpad:~# openssl s_client -showcerts -connect archive.is:443 CONNECTED(00000003) 140330990556480:error:14094410:SSL routines:ssl3_read_bytes:sslv3 alert handshake failure:../ssl/record/rec_layer_s3.c:1543:SSL alert number 40 --- no peer certificate available --- No client certificate CA name…

The site is fine. Cloudflare's DNS is blocked by it, use another provider. For more context: https://community.cloudflare.com/t/archive-today-does-not-re...

Re: Eastern Antarctica sees record temperatures 70 degrees above normal

#65

So what will be the consequences of this? Article makes it clear this is not normal, but doesn't really say much else.

One of the major concerns, alluded to in the article, is the destabilization of the Thwaites. If that thing goes, we're done.

Re: Eastern Antarctica sees record temperatures 70 degrees above normal

#66
post #29

Earlier quoted context omitted.

The probability that an observation is beyond 5 standard deviations is https://en.wikipedia.org/wiki/Chebyshev's_inequality https://en.wikipedia.org/wiki/Cauchy_distribution

If the observed variable is “the mean temperature in a given day”, 4% can be expected to occur relatively frequently. Anyway until we know the probability distribution, and my intuition says that it’s definitely not Normal for wide periods of time, we can’t say if it’s significant or not.

Five standard deviations is not four percent, it is in the 1 in 3 Million range.

Re: Eastern Antarctica sees record temperatures 70 degrees above normal

#67
post #54

that is 39 Celsius above minimum average, or 27 Celsius on the conservative side: Instead of temperatures being minus-50 or minus-60 degrees (minus-45 or minus-51 Celsius), they’ve been closer to zero or 10 degrees (minus-18 Celsius or minus-12 Celsius)

Without knowing the variance, that really says nothing.

Here's what it says according to various researchers, per the article:

“This event is completely unprecedented and upended our expectations about the Antarctic climate system"

“Antarctic climatology has been rewritten,”

"Concordia -18.0 °C unthinkable value in mid-March "

And then for something less extreme:

“[W]e can’t tell whether this is going to be a new trend or is just an oddity that occurs occasionally on a most fascinating continent,”

Personally, I think it's important to pay attention when experts in the field say things like unprecedented and unthinkable on the record. Especially given scientists have a tendency to be more conservative. I think it's a pretty shallow dismissal to say that it really says nothing when experts are saying the opposite.

Re: Eastern Antarctica sees record temperatures 70 degrees above normal

#68
post #30
post #17

Earlier quoted context omitted.

That is wrong on many levels. Such nihilist position does not help the millions of people leading concrete actions on different scales. You are wrong, it's not too late to change how we behave regarding climate and such way of thinking is unlikely to induce the required actions.

It's too late for what's happening now, that's for sure. Stopping the "surprises" that are going to happen in a few decades are still likely physically possible. We'll see if humanity is up to it.

Things will continue to get worse until we do. I guess until some hypothetical dystopian society finishes burning all he coal. Or someone whose entire family has died due to heat/drought engineers a nuclear/biological disaster to end the pieces of civilization that use a lot of energy. Or you know we de-carbonize and build an electrical (for energy) and biological (for medicines and food) society.

Re: Eastern Antarctica sees record temperatures 70 degrees above normal

#69

Earlier quoted context omitted.

It's still below freezing. It's just supposed to be way colder than that.

Under the hood Antarctica is way hotter way closer to the surface than you might expect. There are volcanoes, too. We probably want the weather to stay much colder than the negative one degree Celsius technically required for it to not melt straight away. Could make a critical difference or at least soften the impact.

And it is winter in Antarctica, a mild winter can make the impact of summer worse.

Re: Eastern Antarctica sees record temperatures 70 degrees above normal

#70
post #34

Earlier quoted context omitted.

That’s absolutely right. But as the article itself says, we don’t know if this is the start of some trend or if this is a never previously observed fluke. Climate change is about regression to a mean that is itself higher than the previous mean. But with or without human contribution, weather events are still going to regress to a mean.

We at least have day-to-day written history for thousands of years, in human population zones. We have oral beyond that. We barely have 30 or 40 for a place like antartica. We can detect gross climate, and not any real weather in fossils. For example, no fossil record would capture a chinook, a common occurance in Alberta. https://cwf.ca/research/publications/five-facts-about-chinoo... In 1962, Pincher Creek saw reco…

It is however fairly predicable that folks will comment on unusual (to them) weather behaviour[0]. First thought - "I guess Leo has never experienced a chinook". Go to school when it's -25°C; go home for lunch at +5°C [1].

[0] https://calgaryherald.com/entertainment/celebrity/that-awkwa...

[1] circa mid 60s

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