Donate Image

Your Donations Count Donate Graphicat the Westside Observer!


Greenland Will Cause Sea Rise First, Not Antarctica

•••••••••• August 15, 2023 ••••••••••

Decades ago in Greenland, scientists drilled 4,500 feet into the ice, gathering a twelve-foot-long core sample of soil. That occurred in 1966, when technology was unavailable to research the soil sample with its seeds, twigs, moss and leaves inside

In 2017 the core sample was rediscovered, and research began anew. Scientists discovered that the Greenland ice sheet is not millions of years old but only 416,000 years old.


core sample
Greenland soil sample. Lost for decades
but recently rediscovered, it provides important
climate change information

Furthermore, we learned that Greenland's ice sheet is very fragile. Unfortunately, now we know that a moderate temperature rise could melt that massive block of ice and that the temperature long ago in Greenland, when no ice was present, was similar to comparable temperatures on Earth today. Even more importantly, the amount of carbon in the atmosphere today is 1.5 times higher than 416,000 years ago!

That would indicate we could expect much more ice to melt in the future. Should all the ice in Greenland melt, we could expect the sea level rise an additional 23 feet.


Experts used luminescence technology to indicate the age of the soil samples last exposed to light.

That technology was not available in 1966. Sadly, when ice vanishes, it is replaced with soil or water. Both these conditions add to global warming since they absorb heat, unlike ice which reflects the sun's energy away from the earth's surface.


Therefore, what is needed is to bring climate temperature rise back to zero. And we need to remove much of the carbon in our atmosphere today. Without this, we can expect the Greenland ice sheet to melt quickly and sea level rise to be quicker than we expected.


That would indicate we could expect much more ice to melt in the future. Should all the ice in Greenland melt, we could expect the sea level rise an additional 23 feet.”

Sea-rise barriers on the River Thames
Sea-rise barriers on the River Thames


With this new information, it would seem too ambitious to create a wall high enough to stop sea level rise in our estuary.

Imagine having a wall high enough to save us from flooding next to the Embarcadero. It would completely block the view of the S.F. Bay. A better idea is to stop water from entering San Francisco Bay in the first place. The sea floor is said to be shallow at the "Potato Patch" near the entrance to San Francisco Bay." Maybe a device similar to those that protect London from the Thames River could be engineered when the inevitable sea rise becomes a problem?

Of course, a better solution is to stop global warming in the first place. However, in this, San Francisco needs help from the entire world — that does not seem likely to happen in the near future!

Glenn Rogers, RLA
Landscape Architect / License 3223

August 15, 2023

Glenn Rogers
Glenn Rogers

Have Your Say

More Trending Articles

West Portal Station

Nightmare Plan from Melgar, Breed, and Tumlin

Showdown on West Portal

by George Wooding

SFMTA still has no quantifiable road safety data other than right turns are bad, left turns are bad, fast-moving cars are dangerous, slow-moving cars are dangerous, cars are bad, and bikes are good.

Read More

Laguna Honda Costs graphic

So What’s the Damage?

Counting the Costs of the Laguna Honda Debacle

by Patrick Monette-Shaw

Sadly, LHH has not been recertified, patient admissions have not restarted. So patients needing skilled nursing care are displaced out-of-county.

Check it out

West Portal graphic

Addressing the West Portal Tragedy

Planning for a Safe Intersection

by Supervisor Myrna Melgar

The winning projects will be most closely align to the criteria and can be successfully completed with the funding allocated as a one-time grant.

Read More ...

Removing density controls in western and central SF?


Mayor’s Upzoning Plan Endangers Our Neighborhoods

by Dennis Antenore

Demolitions, speculations, and displacement are in store if the city moves forward with Breed’s approach.

Check it out

Homeless seek respite at Ocean Beach

homeless at Ocean Beach

Life at the end of the safety net

by David Romano

If you do get into a shelter — they’ll take away your belongings, you can’t have a pet, you can’t have visitors and after a few days or a week, you’ll likely be turned out on the street again with nothing.

Check it out

Pill popping

Overdose Deaths Bewilder DPH

Battling lethal drug combinations

by Dr. Derek Kerr

The devastating effect of drug addiction is evident from the human wreckage ...Yes, it’s a nationwide plague. But SF overdose rates are twice the national average.

Check it out

© 2023 Westside San Francisco Media. No portion of the articles or artwork may be republished without expressed consent. Legal disclaimer.