5 ms·

Melting the entire Greenland ice sheet would cause a 7.2 m sea level rise globally. So the questions will it melt and how fast are quite ... interesting.

by fsloth 6y ago

misja111 6y ago
In some places it will rise, in some others not: https://www.sciencemag.org/news/2016/02/how-melting-ice-sheet-could-actually-lower-sea-level-some-places https://www.sciencemag.org/news/2016/02/how-melting-ice-shee...
- 0xdde 6y ago
  What's the point of bringing this up? On average it is still going to be a tremendous rise.
  - TheAdamAndChe 6y ago
    It's important to mention the subtleties so we can best prepare, and so that naysayers can't point to localized sea level drops as proof that global warming is a hoax.
LinuxBender 6y ago
This is probably a little off topic, but it can all melt in a few hours with one decent sized asteroid. This happened before in Greenland. [1] Geologists have confirmed the impact that melted all the ice due to the existence of billions of microscopic diamonds in the crater. My question is, are we monitoring enough of space to know if a big rock is coming and what will people do? [1] - https://www.sciencemag.org/news/2018/11/massive-crater-under-greenland-s-ice-points-climate-altering-impact-time-humans https://www.sciencemag.org/news/2018/11/massive-crater-under...
- selftest 6y ago
  If an asteroid of sufficient size were to strike Greenland, I think sea levels rising would be pretty far down the “this is definitely going to kill us all” list.
  - LinuxBender 6y ago
    Absolutely. I believe it was estimated that asteroid was equivalent to something like 3000+ nuclear bombs all detonating at the same time.
deleted 6y ago
[deleted]
aww_dang 6y ago
Paradoxically, Greenland's coastline is expected to see a relatively lower sea level in this scenario. https://blogs.ei.columbia.edu/2020/02/05/greenland-rising-the-future-of-greenlands-waterfront/ https://blogs.ei.columbia.edu/2020/02/05/greenland-rising-th...
nightcracker 6y ago
That is 361.1 million km^2 * 7.2m = 2.6 × 10^18 liters. Or a cube of side length 137.5km of water.

Melting the entire Greenland ice sheet would cause a 7.2 m sea level rise globally. So the questions will it melt and how fast are quite ... interesting.

by fsloth 6y ago

Melting the entire Greenland ice sheet would cause a 7.2 m sea level rise globally. So the questions will it melt and how fast are quite ... interesting.

misja111 6y ago

In some places it will rise, in some others not: https://www.sciencemag.org/news/2016/02/how-melting-ice-sheet-could-actually-lower-sea-level-some-places https://www.sciencemag.org/news/2016/02/how-melting-ice-shee...

0xdde 6y ago
What's the point of bringing this up? On average it is still going to be a tremendous rise.
- TheAdamAndChe 6y ago
  It's important to mention the subtleties so we can best prepare, and so that naysayers can't point to localized sea level drops as proof that global warming is a hoax.

LinuxBender 6y ago

This is probably a little off topic, but it can all melt in a few hours with one decent sized asteroid. This happened before in Greenland. [1] Geologists have confirmed the impact that melted all the ice due to the existence of billions of microscopic diamonds in the crater. My question is, are we monitoring enough of space to know if a big rock is coming and what will people do? [1] - https://www.sciencemag.org/news/2018/11/massive-crater-under-greenland-s-ice-points-climate-altering-impact-time-humans https://www.sciencemag.org/news/2018/11/massive-crater-under...

selftest 6y ago
If an asteroid of sufficient size were to strike Greenland, I think sea levels rising would be pretty far down the “this is definitely going to kill us all” list.
- LinuxBender 6y ago
  Absolutely. I believe it was estimated that asteroid was equivalent to something like 3000+ nuclear bombs all detonating at the same time.

deleted 6y ago

[deleted]

aww_dang 6y ago

Paradoxically, Greenland's coastline is expected to see a relatively lower sea level in this scenario. https://blogs.ei.columbia.edu/2020/02/05/greenland-rising-the-future-of-greenlands-waterfront/ https://blogs.ei.columbia.edu/2020/02/05/greenland-rising-th...

nightcracker 6y ago

That is 361.1 million km^2 * 7.2m = 2.6 × 10^18 liters. Or a cube of side length 137.5km of water.