Comments on: How high can the sea level rise if all the glacial ice melted?

By: Joseph Rogowski

Joseph Rogowski — Sun, 20 Mar 2022 22:25:06 +0000

I saw a post that said the NJ Pine Barrons were once underwater. I drove from Barnegat into Burlington county to go to work. Then I thought that I might be able to find sea fossils if this area was once under water. I used a 1/2 high wire mesh basket and shovel to randomly stop along Rt72 just outside ocean county, walked about 100 ft on the north side of Rt72, dug some shallow holes, shake the sand in the wire mesh basket and then, there’re it was. It was a whiteish spiral like sea creature fossil about 2 inches in diameter. I poked around some more and found similar fossils. So, yes, this area was once under water.

So I guess that the Jersey Shore was once farther inland, or maybe Pennsylvania has an ocean view.

Anyone who lives in this area of Ocean/Burlington counties near Rt72 can look for yourself as it only took me about 15 minutes.

By: Victor Mason

Victor Mason — Thu, 27 Aug 2015 18:01:41 +0000

Global warming good news? “Greenland will be Green again!”

By: Tim

Tim — Wed, 04 Feb 2015 06:36:45 +0000

Your map does nicely depict the old fall line/coastal plain of the late Cretacecous and Eocene (Paleocene-Eocene Thermal Maximum?)

If you study a satellite image of Alabama, you can see a broad band of gray that arcs across the middle of the state. That band represents an ancient seashore.

http://blog.al.com/wire/2013/02/sifting_for_ancient_shark_teet.html

The article notes “You are not going to find anything unless there is limestone”, but we found our 70M year old shark teeth in raw, red sandstone cutout banks from a sandstone mining operation in Montgomery.

By: On Sea Level Rise – Greg Laden's Blog

On Sea Level Rise – Greg Laden's Blog — Mon, 02 Feb 2015 17:27:05 +0000

[…] Third: you may remember a while back I made a map that showed North American coast lines under the extreme scenario where all of the polar ice on Earth melts. That would represent about 80 meters of sea level rise. Well, the data I used to do that, from the USGS, had a problem, and with new data I’ve redone the map (and focused on the eastern part of the continent because it is more interesting). See: How high can the sea level rise if all the glacial ice melted? […]

By: Astrostevo

Astrostevo — Sat, 31 Jan 2015 07:30:49 +0000

The graphic is pretty good (if that’s the word!) for the America’s but what about the rest of the world? What will Europe , Africa, Asia and especially fro my interest my land of Australia look like? I was expecting a global view of everywhere – maybe I’m missing something obvious here but I’m not seeing it.

PS. I vaguely recall seeing a cup on TV (in a news snippet) some time ago – end of the Bush II era if memory serves – which had a global map that changed based on whether it was full or empty. Would love to have got one of those actually. Think I’m recalling right?

By: Greg Laden

Greg Laden — Sat, 31 Jan 2015 04:08:51 +0000

Thanks for the input that caused me to fix it!

Yeah, you think New Jersey is bad, what about Thailand and Bangladesh!

By: wehappyfew

wehappyfew — Sat, 31 Jan 2015 03:36:16 +0000

Love it!
Well… maybe that’s the wrong word, but I appreciate the update and improved accuracy.

Lousiana, Delaware, most of New Jersey, 2/3rds of Maryland… also sunk.

The sunken parts of Arkansas, Louisiana, and New Jersey are some of the most productive farmland in the world. Not good for US food outlook.

By: Greg Laden

Greg Laden — Sat, 31 Jan 2015 03:06:11 +0000

COMMENTS ABOVE THIS ONE ARE ABOUT THE OLDER GRAPHIC.

COMMENTS BELOW THIS ONE ARE ABOUT THE UPDATED POST. IF THERE ARE COMMENTS THAT IS.

By: Greg Laden

Greg Laden — Tue, 30 Dec 2014 16:08:52 +0000

That is correct. For the most part, sea level rise that would be very dramatic along the coast will not affect high elevation areas, but it does in the sense that the relative altitude does change, as well as the relative distance to the sea in many cases. So the overall lat/long relationship and atmospheric moisture related issues all change sometimes perhaps a lot. I suspect, though, that changing temperatures would alter the treeline more than the change in sea level rise. But they would be changing the tree line in the same direction.

By: C.S. Griffel

C.S. Griffel — Tue, 30 Dec 2014 15:15:51 +0000

Greg-thank you for the clarification, as stated, I am really looking at it with layman’s eyes. Your answer confirms for me what I sort of thought-without being able to differentiate the colors well. In this model, the Rockies are basically affected only in the sense that sea level has risen, thus altering their elevation in relative terms, but they themselves didn’t really alter, correct? I’m asking as a matter of little bit of research for a writing project and seeking out whether what was in my own mind bears any plausibility. Thank you again so much for taking a minute to answer my questions.