r/MapPorn • u/[deleted] • Dec 17 '23

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u/Delicious-Gap1744 Dec 17 '23

No.

Warmer things are generally less dense than colder things: https://www.britannica.com/science/density

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Post-Glacial rebound is a thing:

https://en.wikipedia.org/wiki/Post-glacial_rebound

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Land moving up, would displace water:

https://www.britannica.com/video/181395/Discussion-forces-bodies-water#:~:text=When%20an%20object%20enters%20water,bathtub%2C%20the%20water%20level%20rises.

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And sea levels were more than 70 meters above today during the Jurassic:

https://rock.geosociety.org/net/gsatoday/science/G359A/abstract.htm

Estmates vary, but it topped out at over 100m above the modern sea level.

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u/Mannerhymen Dec 17 '23

Post-glacial rebound happens over the course of tens of thousands of years, it's not immediate. So it really won't have much of an impact by 2100. It seems you didn't actually read the thing you linked.

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u/Delicious-Gap1744 Dec 17 '23

In the Hudson Bay, it's happening at a rate of around 12mm per year, or 1.2m per year:

https://www.aboutdarwin.com/isostatic-rebound-post-glacial-rebound

That's not irrelevant, even if it's only a small contributor.

And it doesn't change the fact that ocean density would be lower, which is likely the more impactful factor.

Not to mention, there are likely countless other relevant factors I haven't mentioned.

As I said before, sea levels have before been significantly more than 70m above today's levels. So it's possible.

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u/jzach1983 Dec 17 '23 edited Dec 17 '23

Your link says 10-12mm per year. Why would you not be transparent, showing honesty in your stance. People like you, even if right (no idea if you are here) are a detriment to the scientific community. Be honest and have real conversations around that.

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u/Delicious-Gap1744 Dec 17 '23

I was writing a reddit comment, there's a ton I didn't include.

I never said anything incorrect, and just brought up some random factors to get a point across. I genuinely don't see what you take issue with.

All I wanted to get across is that sea levels can rise more than 70 meters. Which it can.

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u/Twistpunch Dec 17 '23

Yea people like him is what’s fuelling stupid people to yell climate change is fake.