Hacker News Board Hacker News, browsed like a classic message board
Live data from Hacker News

Record low Antarctic sea ice coverage indicates a new sea ice state

nature.com

Post reply on HN
Print view View original

11–17 of 17 posts

Re: Record low Antarctic sea ice coverage indicates a new sea ice state

#11

Post by OrvalWintermute »

paulkrush wrote: post #10
OrvalWintermute wrote: post #9

Earlier quoted context omitted.

Starting a timeline at 20k years ago when we were, or near to the peak of the Last Glacial Maximum is not only deceptive, and most of Canada was under the giant Laurentide & Cordilleran glaciers, as was much of Asia, is frankly unscientific and alarming. A simple response to that is a graph of glaciation cycles https://opentextbc.ca/geology/chapter/16-1-glacial-periods-i... In respect to CO2 https://mashable.com/arti…

I can't see your first comment(it's flagged) to reply more. How many down votes does this take to get flagged like this? When you talk millions you have a point, but it does not apply to modern humans. (That I can see). I think hockey sticks(in my lifetime) are really meaningful in 20,000 year graphs. There is a lot of money out there to poke holes in these 20K year graphs, so I am looking for this holes.

> This is not new, we are still coming out of an Ice Age from a climate perspective, and the historical record bears evidence of a warmer Antartica

> https://phys.org/news/2021-03-fossil-forests-antarctic-ice.h...

I don't know on the downvotes question.

Re: Record low Antarctic sea ice coverage indicates a new sea ice state

#12

Post by defrost »

OrvalWintermute wrote: post #11
paulkrush wrote: post #10

Earlier quoted context omitted.

I can't see your first comment(it's flagged) to reply more. How many down votes does this take to get flagged like this? When you talk millions you have a point, but it does not apply to modern humans. (That I can see). I think hockey sticks(in my lifetime) are really meaningful in 20,000 year graphs. There is a lot of money out there to poke holes in these 20K year graphs, so I am looking for this holes.

> This is not new, we are still coming out of an Ice Age from a climate perspective, and the historical record bears evidence of a warmer Antartica > https://phys.org/news/2021-03-fossil-forests-antarctic-ice.h... I don't know on the downvotes question.

> I'm skeptical about Darwinian evolution because I see little to no credible evidence for it.

Exactly how many of the 22 full-length books and 700+ papers by Alfred Russel Wallace have you read though?

They're packed with meticilous observations direct from decades of field work on both sides of what is now known as the Wallace line.

Wallace had a better grasp on evolution than Darwin.

https://en.wikipedia.org/wiki/Alfred_Russel_Wallace

Re: Record low Antarctic sea ice coverage indicates a new sea ice state

#13

Post by paulmd »

coolspot wrote: post #7
xwdv wrote: post #4

[flagged]

Hi xwdv, We have carefully reviewed your suggestion. Unfortunately there are no big mountains in Antarctica, just flat sheets of ice. So it is not really suitable for a ski resort. Might work for polar bear hunting tho. HN rich people’s local charter.

Pulls mic close, inhales.

“WRONG.”

https://en.m.wikipedia.org/wiki/Transantarctic_Mountains

;)

Re: Record low Antarctic sea ice coverage indicates a new sea ice state

#14

Post by lm28469 »

OrvalWintermute wrote: post #8
defrost wrote: post #5

Earlier quoted context omitted.

s/historical/geological/ please. On that point the geological evidence also shows the entire planet surface was once a molten hot mess, a recently formed rough ball made by collision and accretion. None of which has to do with our human actions tipping the recent climate stability that cradled the formation of what currently passes for civilization.

The word climate is mentioned >= 14 times in the article, not including the references. It is clearly an article about climate. Despite our measuring the climate (NOT WEATHER) in 30 year increments, and despite our knowing that from a climate perspective, the Last Glacial Maximum was ~21k years ago and during this time the glaciation hit a maximum and sea levels dropped incredibly. It was also during this time that g…

https://upload.wikimedia.org/wikipedia/commons/f/f8/2000%2B_...

This "medieval warm period" that doesn't look anywhere close to what we're going through ?

And yes earth has been much colder and much warmer, so what ?

Please, open a book and lok at the scale of things

Re: Record low Antarctic sea ice coverage indicates a new sea ice state

#16

Post by OrvalWintermute »

lm28469 wrote: post #14
OrvalWintermute wrote: post #8

Earlier quoted context omitted.

The word climate is mentioned >= 14 times in the article, not including the references. It is clearly an article about climate. Despite our measuring the climate (NOT WEATHER) in 30 year increments, and despite our knowing that from a climate perspective, the Last Glacial Maximum was ~21k years ago and during this time the glaciation hit a maximum and sea levels dropped incredibly. It was also during this time that g…

https://upload.wikimedia.org/wikipedia/commons/f/f8/2000%2B_... This "medieval warm period" that doesn't look anywhere close to what we're going through ? And yes earth has been much colder and much warmer, so what ? Please, open a book and lok at the scale of things

> This "medieval warm period" that doesn't look anywhere close to what we're going through

Southern Greenland, England, Russian, and Norway were all growing wine grapes during the medieval warm period. Some people claim the medieval warm period was regional, but this seems to be misstated - 55th parallel north across the world. Wine was being made in England as far north as York, and in the Americas, in Southern Ontario.

This calls into question the "regionalism" of the Medieval Warm Period.

One of the biggest reasons that the MWP is called into question is because the Climate Models don't have a good understanding of why, and we think it may have had a lower CO2 amount than today (although ice core drilling has numerous scientific problems)

Re: Record low Antarctic sea ice coverage indicates a new sea ice state

#17

Post by OrvalWintermute »

defrost wrote: post #12
OrvalWintermute wrote: post #11

Earlier quoted context omitted.

> This is not new, we are still coming out of an Ice Age from a climate perspective, and the historical record bears evidence of a warmer Antartica > https://phys.org/news/2021-03-fossil-forests-antarctic-ice.h... I don't know on the downvotes question.

> I'm skeptical about Darwinian evolution because I see little to no credible evidence for it. Exactly how many of the 22 full-length books and 700+ papers by Alfred Russel Wallace have you read though? They're packed with meticilous observations direct from decades of field work on both sides of what is now known as the Wallace line. Wallace had a better grasp on evolution than Darwin. https://en.wikipedia.org/wiki/…

I haven't ready any of the books by Alfred Wallace. Will put one on the list.
Post reply on HN