8.8 Feet of Sea Level Rise by 2100

Source: Pinterest

A global sea level rise of 8.8 feet could easily mean 20 feet in New Orleans: one tropical storm, and "blub, blub!"

In the last days of Barack Obama's administration, US government scientists warned even more sea level rise is expected by century's end than previously estimated, due to rapid ice sheet melting at the poles. 

The report by the National Oceanic and Atmospheric Administration (NOAA) set the "extreme" scenario of global average sea level rise by 2100 to 8.2 feet (2.5 meters), up half a meter from the last estimate issued in 2012. 

"We raised the upper limit of our scenarios," lead author William Sweet told AFP. 

"It is possible. It has a very low probability. But we can't discount it entirely."

How low a possibility? 0.1 percent? 0.5 percent? One percent? Five percent? The one percent doctrine means we must plan for it and act as required to counteract the threat.

To find out more, click here.

Here's an idea on Boston protecting itself from sea level rise:

"The Sapphire Necklace"
Source: The Boston Globe.

For more on what Boston might set out to do to protect itself, click here.

Five feet of Sea Level Rise by 2050? Ten feet at New Orleans in that Case.

I have recently found out that because of the destabilisation of the Greenland and West Antarctic Ice Sheets in general, and the Pine Island Glacier in particular, we could see five feet of global mean sea-level rise by 2050.  Due to the gravity effects of the loss of ice at the poles, New Orleans will see twice as much seal level rise as the global mean.

Meltwater from the east end of the East Antarctica ice sheet.
As if Greenland and West Antarctica ice melt weren't bad enough.

This is six feet rise in sea level at New Orleans.
This is from a global mean of three feet.
Source: New Orleans Advocate 

From The Huffington Post, 18 November 2016, U.S. Climate Envoy Jonathan Pershing: Five Feet Of Sea Level Rise By 2050 Possible.

The mood in Marrakech was somber when top climate envoy for President Barack Obama Jonathan Pershing dropped a bombshell on observers gathered there: The rapid warming in polar regions the world is now witnessing may result in five feet—or 1.5 meters— of sea level rise by 2050. 

Pershing had met earlier with State Department Secretary John Kerry in Morocco at the 22nd UN Conference of the Parties to the UN Framework Convention on Climate Change, or COP22. Kerry had just returned from a trip to Antarctica. According to Pershing, Kerry told him that the Pine Island Glacier in Antarctica “is moving very fast and when it goes, we will see 1.5 meters of sea level rise by 2050.” 

“Five feet of sea level rise in less than 35 years — that is really soon,” said Pershing. “There are 65 million people now living in a state of conflict and 140 million who live less than 3 feet above sea level.

I had reported on the effects of gravity influences on the effect on sea level rise at New Orleans here, based on information reported in the New Orleans Advocate, which has come out with a new article November 23rd on local sea level rise this century: Study hands New Orleans bleak sea rise outlook, with some of highest projections in the world.

Just when you think the news about sea level rise couldn’t get much worse for New Orleans, it has. 

According to a study released this month, the city will experience one of the highest increases in sea level among 138 coastal cities around the planet because of its location on the northern Gulf of Mexico. 

New Orleans could see as much as 14.5 inches of sea level rise by 2040, and 6.5 feet by 2100 if the world doesn’t act quickly to lower greenhouse gas emissions, the main driver of global warming. 

The populated parts of the city, of course, are protected by levees rising to about 22 feet. The increase would be most evident outside the levees

Of course the study that predicts a 14.5 inches' rise by 2040 and 6.5 feet by 2100 does not take into account the above information about the increasingly rapid disintegration of the Greenland and Antarctica ice caps that Pershing dropped on the climate change conference in Marrakesh.

And the ice melt has started on East Antarctica as well, at its east end, reported by Robertscribbler on November xx: Did Föhn Winds Just Melt Two Miles of East Antarctic Surface Ice in One Day?

Supraglacial lake is just another word for a surface glacial melt lake. And these new lakes pose a big issue for ice sheet stability. Surface melt lakes are darker than white glacier surfaces. They act as lenses that focus sunlight. And the comparatively warm waters of these lakes can flood into the glacier itself — increasing the overall heat energy of the ice mass.

But water at the glacier surface doesn’t just sit there. It often bores down into the ice sheet — producing impacts for months and years after the surface lake’s formation. Sub surface lakes can form in the shadow of surface ponds. Transferring heat into the glacier year after year. In other cases, water from these lakes punches all the way to the glacier’s base. There the added lubrication of water speeds the glacier’s flow. All of these processes generate stresses and make glaciers less stable. And it is the presence of surface melt ponds that has been responsible for so much of Greenland’s speeding melt during recent years.

Now, a similar process is impacting the largest concentration of land ice on the planet. And while Greenland holds enough ice to raise sea levels by around 21 feet, East Antarctica contains enough to lift the world’s oceans by about 195 feet. Surface melt there, as a result, produces considerably more risk to the coastal cities of the world.

In other words, it looks like even Pershing's dire warning at Marrakesh recently is now outdated. Oh, crap.

For more info click here, here, here, here, here [scroll down to EXTINCTION (Yes, it is real)], and here. 

"Retrotopia 2065" Second Draft of the Map.

Here's the second draft of the map I posted yesterday.

Other commenters remarked on Mr. Greer's big batch of tips he addressed to me and in turn, Mr. Greer came out with some more tips:

Ed-M, the Atlantic Republic is the present-day states of New York, Pennsylvania, New Jersey, Delaware, and Maryland, with the eastern (not western) panhandle of West Virginia; Washington DC is technically Atlantic territory but it's basically a ruin inhabited by squatters. West Canada is BC, Alberta, Saskatchewan, the Northwest Territories and the Yukon Territory; Nunavut, I should have said, is an independent nation, having united with Kalaallit Nunaat (aka Greenland) in 2042. There's also the Free City of Chicago, which is an independent (and gaudily corrupt) nation, and consists of Cook County. I think that's it!

So I made some changes, but I kept the 2 degrees' Centigrade seal level rise for the East and Gulf Coasts, because the author of the Dredd Blogg has indicated that these coasts will get the worst of the sea-level rises. For example, Miami-Dade and Fort Lauderdale have a solid foot of risen sea level compared with the global eight inches since 1870, today!. Therefore for a global six feet, expect between ten and twenty feet sea level rise for the two shorelines.

For proof, click on the Dredd Blog tag and you'll be directed to his Post Series page. Scroll down to EXTINCTION (Yes, it is real) and then to various series on SEA LEVEL CHANGE. You'll find many posts under these topics that show that sea-level rise from global warming is not uniform, but varies all over the planet -- another component of global weirding.  For example, one post in particular discusses past and future sea level rise around Miami (click here).

"Retrotopia 2065"

Over at The Archdruid Report, John Michael Greer has been writing a series called "Retrotopia." The first chapter was posted about November of last year and the series has had about its twentieth chapter posted. So I thought I'd make a little map of North America at about that time.  Mr. Greer gave me the following pointers:

Ed-M, the map's pretty simple. The Republic of New England and the Maritimes consists of the New England states from Massachusetts north, and the Maritime provinces that are now part of Canada. Quebec is Quebec. East Canada is Ontario, Manitoba, and points north. The Lakeland Republic is Ohio, West Virginia except for the western panhandle, Indiana, Kentucky, Illinois, Michigan, and Wisconsin. The Confederate States of America is the old Confederacy of 1861 minus Texas, and plus the southeastern quarter or so of Missouri. The Missouri Republic is the rest of Missouri, Kansas, Nebraska, Iowa, Minnesota, and the Dakotas, along with all of Wyoming and Montana east of the Continental Divide and the northeastern third or so of Colorado. The Republic of Texas is Texas, Oklahoma, New Mexico, and part of southern Colorado. The Republic of Deseret is Utah, Idaho minus the panhandle, and the portions of Colorado and Wyoming west of the continental divide. Arizona and Nevada are abandoned territory, uninhabitable due to climate change. The Republic of California is California, and the Cascade Republic is Washington, Oregon, the Idaho panhandle, and the portion of Montana west of the continental divide. Oh, and there's the Kingdom of Hawai'i and the Republic of Alaska, if you want to include them. Sea level has gone up about six feet; New Orleans, Galveston, and the Florida Keys no longer exist, and the southern end of Florida has been heavily eroded by rising seas and massive hurricanes, so it's not the same shape as it is today. Got it? 

And so with that information, I created a map.

I got the Atlantic/Florida/Gulf Coasts drownings from this photo here. I went by that photo's 2 degree Celsius projected sea level rise which looks about right but I think is a gross underestimate for a 2 deg C tempreature rise. And at the current Carbon Dioxide Levels? It's going to be worse: higher temps and higher sea level rise.

I also tweaked SF Bay, the Puget Sound and Vancouver BC area, the Cook Inlet (Anchorage AK), the Yukon Delta and the MacKensie Delta to account for a 6-foot rise. Of course, the water that far up North might not rise being it's so close to Greenland and all.

Impact of Sea Level Rise in Boston Worse than Previously Thought.

Again, it's all on the ice-melt in Antarctica and the release of water due to the reduced gravity of the shrunken Antarctic ice cap. The Law of Gravity works on objects on and orbitng Earth and every other planet, tides, solar systems, galaxies, and even water around ice caps and hoards of wealth!

From The Boston Globe:

The consequences of climate change on Boston are expected to be far more calamitous than previous studies have suggested, a new report commissioned by the city says. 

In the worst-case scenario, sea levels could rise more than 10 feet by the end of the century — nearly twice what was previously predicted — plunging about 30 percent of Boston under water. Temperatures in 2070 could exceed 90 degrees for 90 days a year, compared with an average of 11 days now.

The report, by scientists from the University of Massachusetts and other local universities, has raised concerns in City Hall just two weeks after Mayor Martin J. Walsh attended a climate summit in Beijing.

The updated projections for Boston take into account new research that suggests the accelerating melt of the ice sheets covering Antarctica will have a disproportionate impact on cities along the East Coast.

http://www.bostonglobe.com/metro/2016/06/22/climate-change-could-have-even-worse-impact-boston-than-previously-expected/S6hZ4nDPeUWNyTsx6ZckuL/story.html?event=event25

For more information:

Dredd.Blog: Greenland and Antarctica Invade the United States

Ecocosmology: The Gravity of Sea Level Change

Dredd Blog: Why Sea Level Rise May Be the Greatest Threat to Civilization

Update on the Antarctica Meltdown:

I got a heads-up from Robertscribbler. He's snagged some research on the meltdown now going on in the Antarctic:

Unfortunately, Totten is just one of many large glacial systems that are now destabilizing across Antarctica. And researchers are now beginning to identify significant potential sea level rise contributions from Antarctica alone (ranging from two feet to nearly two meters) before the end of this Century. In New Scientist, during March, Antarctic researcher Rob Deconto notes:

“Today we’re measuring global sea level rise in millimetres per year,” DeConto says. “We’re talking about the potential for centimetres per year just from [ice loss in] Antarctica.”

Centimeters per year sea level rise is about ten times faster than current rates and implies 100 year increases — once it gets going — in the range of 2 to 3 meters. Such increased melt does not include Greenland’s own potential sea level rise contribution. Nor does it include sea level rise from other glacial melt and ocean thermal expansion. As such, it appears that multi-meter sea level rise is becoming a more and more distinct possibility this Century. Furthermore, the paleoclimate context is now pointing toward catastrophic levels of overall melt and sea level rise if global greenhouse gasses aren’t somehow stabilized and then swiftly reduced.

And don't forget Sea-Level Changes -- with a lot of rises away from Greenland and especially Antarctica -- from the redistribution of waters released from the Ice caps' gravity.

A meter here, a meter there and pretty soon you’re in for some wicked serious sea-level rise!

Totten Glacier Is Destabilised.

Why should you care?

Because it's in East Antarctica -- and the "warm" deeper waters from the Southern Ocean are melting into the glacier and its whole catchment area. Let me show you:

Here is a map of Antarctica with the Totten Glacier highlighted in pale blue:

Source: The Wasibngton Post, via Dennis Dimick on Twitter,
via dtlange at Robertscribbler.

Now let me show you how deep its catchment area is!

Source: ScienceDirect via Robertscribbler.

Note bedding under the catchment area is up to about a mile below sea level! So before the glacier were to visibly melt, it could become severely undermined by the warm waters already eating away at its base. Which means, if we're especially unlucky (or God is or The Gods are especially angry at us or playing tricks with us) this thing could get completely undermined before detatching from its above-sea-level neighbours. And if it does, when it does a huge chunk of ice the size of California and 1-1/2 miles high (at least) will go sailing off to the North or falling into its basin -- and nine-tenths of that height will be underwater!

From Robertscribber:

Towering Totten and the Coming MultiMeter Sea-Level Rise

A new scientific study has found that the Totten Glacier is fundamentally unstable and could significantly contribute to a possible multi-meter sea level rise this Century under mid-range and worst case warming scenarios.

408 Parts per million CO2. 490 parts per million CO2e. This is the amount of heat-trapping CO2 and total CO2 equivalent for all heat-trapping gasses now in the Earth’s atmosphere. Two measures representing numerous grave potential consequences.

We’re Locking in 120-190 Feet of Sea Level Rise Long Term

Looking at the first number — 408 parts per million CO2 — we find that the last time global levels of this potent heat-trapping gas were so high was during the Middle Miocene Climate Optimum of 15-17 million years ago. During this time, the Greenland Ice Sheet did not exist. East Antarctic glacial ice was similarly scarce. And the towering glaciers of West Antarctica were greatly reduced. Overall, global sea levels were 120 to 190 feet higher than they are today. Meanwhile, atmospheric temperatures were between 3 and 5 degrees Celsius hotter than those experienced during the late 19th Century

Large sections of Antarctica rest below sea level. A physical feature that renders substantial portions of Antarctica’s glaciers very vulnerable to rising ocean temperatures. Since the latent heat content of water is substantially higher than that of air, even comparatively small ocean temperature increases can cause significant melt in sea-facing glaciers and in below sea level glacial basins.

For more, click here.

Now if the Totten Glaicier were all to melt, it would contribute about 3.5 meters of additional sea level -- over 11 feet, according to The Washington Post. Now this huge chunk of ice isn't going to all melt and leave the rest of Antarctica frozen. Instead, as it melts, Greenland, West Antarctica and other areas in East Antarctica will also melt, as they are doing now. So we could get, say, 1 meter from Totten, 1 from Greenland, 1 from West Antarctica and 1 or 2 from other parts of East Antarctica by 2100. Guess what! That's 13 to 16 feet of sea level rise! South Florida will be inundated. Chesapeake Bay, enlarged to the point of Ridiculousness. The Central Valley in California, flooded (maybe). The Missisissippi Delta in Louisiana, destroyed. Courtesy of the Fossil Fuels Derivatives Beast.

Possibly, the only thing that can stop this is Yellowstone blowing up.

Tips o' th' hat to dtlange and Robertscribbler.

Arctic Ice Suffers Severe Melt-back as Satellite Monitor Begins to Fail.

This is a reblogging of and commenting on two recent articles posted by Robert Scribbler. Please note that this is not the only pole that's suffering ice melt. Antarctica is now melting, too.

First, Robert Scribbler predicts that the Arctic Ice will just about completely disappear by the end of this summer, and he backs it up with EVIDENCE, such as the now-ongoing break-up and meltback of ice in the Beaufort Sea:

Arctic Sea Ice is Falling off a Cliff and it May Not Survive The Summer

By Robert Scribbler 2 May 2016

Near zero sea ice by the end of melt season. The dreaded Blue Ocean Event. Something that appears more and more likely to happen during 2016 with each passing day.

These are the kinds of climate-wrecking phase changes in the Arctic people have been worrying about since sea ice extent, area, and volume achieved gut-wrenching plunges during 2007 and 2012. Plunges that were far faster than sea ice melt rates predicted by model runs and by the then scientific consensus on how the Arctic Ocean ice would respond to human-forced warming this Century. For back during the first decade of the 21st Century the mainstream scientific view was that Arctic sea ice would be about in the range that it is today by around 2070 or 2080. And that we wouldn’t be contemplating the possibility of zero or near zero sea ice until the end of this Century.

Melting more than Two Weeks Faster than the Early 2000s

Since April 27th, according to a record of sea ice extent provided by JAXA, daily rates of sea ice loss have been in the range of 75,000 square kilometers for every 24 hour period. That’s 300,000 square kilometers of sea ice, or an area the size of New Mexico, lost in just four days. Only during 2015 have we ever seen such similarly rapid rates of loss for this time of year.



Image source: JAXA via Robertscribbler.

We’ve never seen early season sea ice losses like this before. Severe sea ice losses of this variety can help to generate strong ridges and extreme heatwaves [and wildfires] like the ones we now see affecting [Canada,] India and Southeast Asia.

According to the rates of decline shown for this year, last year, 2007 and 2012, we are in for a record low area of Sea Ice Extent up in the Arctic. And one of the areas is the Beaufort Sea, described by Robert Scribbler, wherein there is a huge area of exposure of water close to the sea coast and the Canadian Archipelago, and an immense area of sea ice that is in shards:



Image source: LANCE-MODIS via Robertscribbler.

This Beaufort sea has never looked so bad off so early in the year. High amplitude waves in the Jet Stream continue to deliver record warmth, warm, wet winds, and record sea ice melt to this region of the Arctic. For reference, bottom of frame in this image is around 600 miles. The wispy threads you see in the image is cloud cover, the sections of solid white are snow and ice. And the blue you see is the open waters of the Arctic Ocean. Open water gap size in the widest sections is now more than 150 miles.

There, ice continues to rapidly recede away from the Arctic Ocean shores of the Mackenzie Delta and the Canadian Archipelago — where a large gap has opened up in the sea ice.

All this melting ice on sea and land will eventually convert to rising seas, and will inundate areas like Southern Louisiana, South Florida, the Chesapeake Bay including such major cities like New Orleans, Miami and Washington, D. C.

We can head it off if we do a crash program to get away from fossil fuels cold-turkey and start extracting carbon out of the atmosphere. But I have my doubts that this is politically possible at all.

And the US Congress and Senate are not helping. The GOP wants to cut everywhere except the War Department, and the Democrats are so ineffectual at stopping them, they are enablers. Which is why the Arctic Ice Satellite Monitor is starting to go on the fritz:

Republican Climate Change Denial is Blinding Our Ability to Observe the Arctic

By Robert Scribbler 26 April 2016

Denial.

It’s all-too-often what happens to the powerful when they are confronted with the consequences of their own bad actions. It can best be said that denial is blindness — the willful inability to open one’s eyes to the tough reality of the world. In literature, we can see denial in the tragic sin of hubris and in the metaphor of Oedipus the King gouging his own eyes out as a result of his failure to come to terms with the warnings of prophecy.

In the psychological sense, denial involves the inability to cope with reality such that a person will act in an irrational fashion to the point of generating fantasies that the object of said denial does not exist. Behaviorally, this results in an increasing degradation of a person’s ability to confront or cope with the object of denial — to the point of ardent, irrational, and possibly destructive outbursts when faced with it.

Arctic sea ice loss.

Ever since 1979 an array of satellite sensors has allowed our scientists to directly observe the sea ice in the Arctic. Since that time, and as a human-forced warming of the world ramped up, the area which that ice covers has dramatically shrunken. So much so that by this year, 2016, there’s a risk that not only will a new all-time record low be reached, but that by the end of this summer almost all the ice in the Arctic Ocean will be melted out entirely. A risk that a new climate change related event will start to take shape in the Arctic. The blue ocean events.

Data source: NSIDC. Image source: Pogoda i Klimat via Robert Scribbler.
Comment in red mine.

Arctic sea ice area as measured by observational satellites and most recently by  F17. The bottom line of the graph measures days of the year. The left side of the graph measures sea ice area. The corresponding intersections determine sea ice area on any given day of a year in the record. The up and downward swoop of each line on the graph shows the seasonal variation of sea ice area for that given year. The blue line on the graph represents 1980 sea ice area. The dark gray line represents the 1979 to 2000 average. The red line represents the 2012 record low year. 2016, in black, shows a squiggle as F17 begins to fail in early March of this year — a year that could significantly beat 2012 as the worst melt year on record. The sensor is failing because it is old and needs replacement. A replacement that is now sitting in a warehouse due to republican-led satellite research funding cuts.

Willful Blindness

Where does denial meet with Arctic sea ice loss? In the form of climate change denying republicans attempting again and again to cut and with-hold funding to NASA and NSIDC instruments that track what is an unprecedented and historic melt now ongoing. For ever since their coming to power in Congress in 2010, republicans have done everything they can to remove funding for the devices that provide a direct observation of the changes coming as a result of a human-forced warming of our world.

More here.

What Earth Would Look Like if All the Ice in the World Melted.

Here are maps of the Earth that shows the shorelines that would exist if all the ice in the world became unfrozen.

Example: Antarctica with no ice. Source: mymodernnet.com.

This wouldn't be a problem if Simon Bar-Sinister caused all the water in the world to  DRY UP! But we'd have a different problem, now, would we?

Since Simon is a cartoon character, we have no fear of that other "problem." But we also should have no fear of the ice-free planetary conditions since the Business As Usual (A1F1 = RCP 8.5) global warming future will not be met due to lack of fossil fuels that can be profitably mined or extracted; still, we should expect to reach about 550 ppm CO2 by Century's end. That will give us minimum 3 to 4 degrees C (5.4 to 7.2 F). Now how much sea level rise will we get?

At 3 C warming, about 25 meters, which yield 80 feet.

What 2050 could hold in store for SE Louisiana

From Richard Campanella's book, Time and Place in New Orleans.
Areas in blue are less than 1 ft above today's sea level.

 

Due to climate change and local subsidence, southeast Louisiana could look like this in 2050, especially if the levees fail in Orleans and Jefferson parishes before then, and the submerged lands are abandoned because because of no money, or worthless money.