Pine Island Glacier: the latest example of rapidly melting polar ice that will eventually flood major airports

Ecowatch published an informative article about a huge iceberg, roughly 115 square miles, that has calved off of the Pine Island Glacier. The article cites an interesting series of posts by Stef Lhermitte discussing a large new iceberg, designated B-46, which is rapidly disintegrating as it drifts toward the Pacific Ocean.

The series of posts includes a GIF slideshow showing annual sea-ice extent at the Pine Island Glacier. Here is a scrollable PDF showing a series of screencaps taken from the GIF slideshow, with images at roughly a 5-year interval from 1975 to 2018 (depending on what years had available images). The sea ice extent for each year is indicated by a color-coded thick line; over time, this line progresses upward, exposing more of the seawater below. In the background of all images, the satellite image appears to be current, as taken on 10/30/2018.

Click on the image below for a scrollable view; the PDF file may be downloaded.

Overall, this series of images shows a pronounced decline in sea-ice coverage. Within the images, you will also notice that there were a few years, ending in 2013, where sea-ice cover was expanding. Since 2013, the melting/calving has been precipitous. Bear in mind, the polar regions are in total darkness for months each year, and it may take years for new meltwater to mix with the seawater below. Thus, massive ice melting may cause an easily frozen freshwater lens to sit atop the seawater. This will create an illusion of expanding sea-ice extent for a few winters. But, eventually, once the excessive freshwater becomes mixed, or as ambient air temperatures continue to increase, the expanded ice that peaked in 2013 will become just a distant memory.

Putting this in a Geographic Context

Here is an excerpt from Wikipedia, describing this specific glacier:

Pine Island Glacier (PIG) is a large ice stream, and the fastest melting glacier in Antarctica, responsible for about 25% of Antarctica’s ice loss.[3] The glacier ice streams flow west-northwest along the south side of the Hudson Mountains into Pine Island Bay, Amundsen Sea, Antarctica. It was mapped by the United States Geological Survey (USGS) from surveys and United States Navy (USN) air photos, 1960–66, and named by the Advisory Committee on Antarctic Names (US-ACAN) in association with Pine Island Bay.[1][4]

The area drained by Pine Island Glacier comprises about 10% of the West Antarctic Ice Sheet.[5] Satellite measurements have shown that the Pine Island Glacier Basin has a greater net contribution of ice to the sea than any other ice drainage basin in the world and this has increased due to recent acceleration of the ice stream.

Here are a pair of images, showing Pine Island Glacier’s location on Antarctica, and showing the seas that surround Antarctica, connecting it to the extreme southern oceans.

What Does this Suggest for Our Global Future, and for Aviation?

The rate of calving in recent years is disturbing, and reflects a harsh reality: if our ever-expanding over-consumption of fossil fuels is not reined in, and we continue to see 2- or 3- ppm annual increases in average atmospheric CO2 concentrations (see Keeling Curve), we can expect collapse of these polar glaciers and large-scale sea-rise. Hundreds of the busiest airports across the globe will become underwater. Homes for more than a billion people will also become uninhabitable, under sea-rise. Displaced people will need to find new homes, and that situation will result in global conflict and likely massive human depopulation.

Would it not be a good idea to immediately impose policies that strongly disincentivize excessive and arbitrary use of aviation?

A Closing Image: Accelerated Melting is Likely

Below is a different perspective, rotated, but showing the recession of the glacier (roughly from left to right) and how it compares to actual shorelines beneath. The areas of ice over water are designated as the ‘northern ice shelf’ and ‘southern ice shelf’. Over land, colors appear to show ice flow rates using a spectrum, with red being fast, yellow being moderate, and blue being slow. A major concern among scientists who study polar ice loss and related sea-level rise is that loss of sea-ice eventually removes an important ‘plug’ that holds back glacial ice over land; kind of like eroding the footing out from under a bridge pier. In other words, in this example, the fear is that once the Pine Island Glacier recedes beyond the base of the SW tributary and the southern ice shelf is nearly gone, ice flow from the SW tributary will rapidly accelerate, which in turn will rapidly accelerate global sea-level rise.

It would seem to be very foolish, to continue to ignore this evidence.

‘Stay Grounded’: International Action has Begun, to Curtail Aviation Excesses

Click on the image below for a scrollable view of the international Press Release; the PDF file may be downloaded.

Over the past year, activists from around the world held a series of lengthy teleconferences to craft a position paper,’ 13 Steps for a Just Transport System and for Rapidly Reducing Aviation‘. This is a great group of people, concerned about aviation excesses in the face of unmitigated climate change.

Here are a few links:

  • Action weeks: the first two weeks of October 2018
  • Support: how you can support the Stay Grounded effort
  • Position Paper: download your own PDF copy of an excellent analysis (English version)

An example of recent activism was the protest by Stay Grounded leaders, at an EU aviation summit. Click here for a video, with a great protest speech. This is the kind of calm and factual activism we need across the planet, to rein in the damages and injustices being caused by excessive aviation growth.

Given the depressingly evident impotence and indifference of many U.S. elected officials, and the captured status of FAA as an industry-servant, we need this kind of activism here in the U.S. Can we return to our roots, as strong individuals who speak truth to power and demand meaningful civic involvement, or has this become a relic of our past American glory?

A Short Video by Tyndall Centre

The Tyndall Centre for Climate Change Research created this short video:

The most important fact laid out in the video is that aviation technologies are already highly evolved and, as such, there are no great gains to be achieved with further technological improvements. Thus, impacts need to be addressed by reducing number of flights and total distances flown.

To take real actions to correct this situation, we need to tame the marketing that fools people into thinking aviation is cheap and good for the economy, while obscuring the environmental and social impacts. We also need to change tax laws and aviation fees, to remove incentives for excessive flying and hub concentration.

The smartest moves now are actually quite simple: change the fee and tax structure on aviation, so as to disincentivize aviation consumption. We need to impose a steep carbon tax on all aviation fuels; we need to impose passenger fees that are proportional to distance flown; and, most importantly, the fee and tax revenues need to be spent OUTSIDE of aviation, in other economic sectors.

You can Choose: Fly Less, or Even NOT AT ALL!

One of the best decisions each of us can make, for the environment and the future lives of our children, is to become truly mindful about fossil fuel consumption. Air travel is an incredibly intensive consumption method, and the fastest way each of us can pump fossil fuel emissions into the atmosphere. So, here’s a prominent scientist discussing his decision, more than a decade ago, to stop flying. This could be you, too; and, if you choose this method of showing our concern, you’ll also help reduce other impacts such as the NextGen non-stop streams destroying a few communities across our nation).

So, think about it. Please fly less, or even not at all.

Elected Leaders Need to Work Together

Most of us are smart and rational people, who understand our growing problem with Climate Change and its connection to fossil fuel consumption. Those of us who apply critical thinking, to reason past the propaganda lines spun by the aviation industry cabal (aviation lobbyists, industry players, faux-regulators, etc.), understand this stark fact:

Aviation relies heavily on fossil fuel consumption, and is the fastest way for each of us to further burden our stressed atmosphere with more carbon emissions.

So, what to do about it? It seems to be a no-brainer. The growing number of responsible elected officials who are speaking up to address climate change … they need to join up with elected officials who are fighting to clean up the health and community impacts by excessive scheduling at the most problematic airports. On both counts, this is a fight for a healthy future, and to minimize the life-shortening consequences of too much fossil fuel consumption. Aviation is the perfect place to start.

One Congressional advocate for action on Climate Change is Sheldon Whitehouse, from Rhode Island. Click here to read a copy of a recent email, part of his ongoing campaign. Click here to see his 3/13/2018 news release for a recent speech.

New Brochure Debunks Greenwashing

A new brochure has been published by Finance & Trade Watch, an NGO based in Vienna, Austria. Authored by Magdalena Heuwieser, the 24-pages debunk many of the most common forms of aviation greenwashing. The brochure includes lots of interesting insight that will further inform about the state of regulatory capture that applies not just to FAA but also to the international body, ICAO.

Here is a short index:

  • Pg.4: Headlong growth in a green guise
  • Pg.7: Fantasy technologies and green kerosene
  • Pg.9: Offsetting emissions: a licence to pollute
  • Pg.11: International aviation’s climate plan: CORSIA
  • Pg.14: Green airports? Offsetting emissions and biodiversity
  • Pg.17: Flying with a clear conscience? Individual offsetting of air travel
  • Pg.19: What now? Summing up and looking ahead
  • Pg.21: On the move: resistance highlights

Click here to view an archived copy of the 2-page Executive Summary; click on the image below to view/download the full brochure.

Click on the image below for a scrollable view; the PDF file may be downloaded.


UPDATE, 11/30/2017: — Excellent overview posted at GAAM (the Global Anti-Aerotropolis Movement); more great work by Rose Bridger.

A Steep Aviation Carbon Tax Would Solve Many Aviation Impacts

Image

(click on image to view source tweet)

Aviation is heavily subsidized when Congress approves taxes on passenger tickets and air cargo, then uses those taxes to expand airports beyond what serves the local community. Congress can do better. They need to implement fees and taxes that disincentivize the excessive carbon consumption by commercial operators. Here are some of the many benefits:

  • fewer hub flights (and thus more direct flights)
  • reduced noise and air pollutant impacts, along with more sleep and preserved quality of life, in communities currently being destroyed by NextGen
  • less aviation CO2 pollution per passenger (due to shorter/direct trips replacing indirect flights via hubs)
  • reduced delays (especially at hub airports)

Fake News, or Did Trump Just Swear an Oath to Climate Change Denialism?

(click on image to view source article at Reuters)

We’ve seen so much propaganda, manipulation and false news, especially that generated by the political parties and the mainstream media, that it is easy to hope this is just another false report. After all, with all the data indicating we are setting records for average high temperature, lowest polar sea ice extent, record high atmospheric CO2 concentrations, and more, it sure seems like a bad time to start a war against science and facts. And, cabinet picks aligned with BigOil and BigBanks do not bode well, especially when so many selectees are so staunchly anti-environment.

It’s just our planet, right? Yeah. Right.

Let’s hope President Trump will surprise us. He needs to get serious about the prospective collapse that anthropogenic climate change will deliver, because he’ll earn the blame when his bad decisions tip the balance.

On the chance that the Reuters story is true, all the Climate Change Indicator documents have been copied, and are archived at this aiREFORM webpage. Study them at your leisure, while also distilling the pattern of low Arctic sea ice extent annual records in the table below. Click here to view screencaps of the EPA ‘Climate Change’ webpage, as it appeared prior to Presidential censorship.

A table showing year of minimum arctic sea ice extent for each day of the year. The smaller table at the bottom lists number of record days each calendar year, and number of spans (consecutive days the same year). Spans range from 4 days (2007) to 94 days (since 10/22/2016).


See also:

UPDATE, 1/26/2016: — as of 1:00PM PST, still no noticeable changes to the EPA webpages being tracked. Perhaps Mr. Trump is backing down, or perhaps Reuters overstated the threat in their original news story?

UPDATE, 2/5/2016: — as of 8:45AM PST, still no noticeable changes to the EPA webpages being tracked. The reports and materials remain viewable and downloadable. It would appear that, despite the horrific cabinet choices from BigOil and wealth-elite elements of the oligarchy, President Trump’s ‘threat’ to hide climate science information was overstated by Reuters in their original news story. The key lesson to learn from this is that we all must be awake and leery, not just of the White House occupant and other elected officials, but also of the mainstream media (MSM), with its long track record of distortion to feed a specific political agenda.

(click on image to view source tweet)

A Classic Image in the War Against Carbon

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(click on image to view lots more, tweeted by 'ITryNotToFly')

(click on image to view lots more, tweeted by ‘ITryNotToFly’)

We Should All Be So Brave.

Let’s hope, in this New Year, we continue to see great creative effort and expression by some of the wonderful bloggers fighting for our planet and our future!

‘Fly Now, Grieve Later’ – a Report About Aviation’s Climate Change Impact (47p)

QUOTE

“…Most senior members of the aviation industry do not refute the need to cut emissions, but seek to persuade governments that air travel should be given special treatment….”

– Brendon Sewill, in Chapter One of ‘Fly Now, Grieve Later’

Click here to read the original blog post, or here for an archived PDF copy.


See also: