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High River, Alberta, June 2013In recent months we have endured incredible tropical-equatorial-like torrential rain events occurring at mid-latitudes across the planet. For example, in North America we experienced intense rainfall in the Banff region of the Rockies from June 19th to 24th and the enormous volume of water moved downhill through the river systems taking out small towns and running into the heart of Calgary where it caused $5.3 billion dollars of infrastructure damage; the largest in Canadian history.

Next, it was Toronto’s turn, with 75 mm of rain falling from 5 to 6pm on July 8 (with up to 150 mm overall in some regions) leading to widespread flooding and $1.45 billion dollars in damages. As bad as these events were, they were dwarfed by the intense rainfalls hitting the state of Colorado from Sept 9th to 15th.

Rainfall amounts that would normally fall over 6 months to a year were experienced in less than a week. Widespread flash floods, landslides, and torrents of water ripped apart roads, fracking equipment and pipelines on (at least) hundreds of fossil fuel sites (mostly ignored by mainstream media) ( The level of destruction was simply horrifying, as captured by a man with a plane and a camera. But we have no grounds for complaint, since the widespread flooding in central Europe from May 30th to June 6th caused a much larger $22 billion in damages.

So what is happening? Why are we experiencing so many of these severe weather flooding events that are supposed to only occur every 1000 years or so? Will they keep occurring? What city will be hit next? Can the Alberta tar sands be hit by such an event? What would be the implications?

Abrupt Climate Change In Real-Time

Humans have benefited greatly from a stable climate for the last 11,000 years – roughly 400 generations. Not anymore. We now face an angry climate. One that we have poked in the eye with our fossil fuel stick and awakened. Now we must deal with the consequences. We must set aside our differences and prepare for what we can no longer avoid. And that is massive disruption to our civilizations.

In a nutshell, the logical chain of events occurring is as follows:

A) Greenhouse gases that humans are putting into the atmosphere from burning fossil fuels are trapping extra heat in the earth system (distributed between the oceans (93%), the cryosphere (glaciers, ice sheets, sea ice for 3%), the earth surface (rocks, vegetation, etc. for 3%) and the atmosphere (only an amazingly low 1%). The oceans clearly get the lions share of the energy, and if that 1% heating the atmosphere varies there can be decades of higher or lower warming, as we have seen recently. This water vapor rises and cools condensing into clouds and releasing its stored latent heat which is increasing storm intensity.

B) (i) Rapidly declining Arctic sea ice (losing about 12% of volume per decade) and (ii) snow cover (losing about 22% of coverage in June per decade) and (iii) darkening of Greenland all cause more solar absorption on the surface and thus amplified Arctic warming. Global temperatures have increased (on average) about 0.17 oC per decade but the Arctic has increased > 1 oC per decade, or about 6x faster.

C) Equator-to-Arctic temperature difference is thus decreasing rapidly.

D) Less heat transfer occurs from equator to pole (via atmosphere, and thus jet streams become streakier and wavier and slower in west-to-east direction, and via ocean currents (like the Gulf Stream, which slows and overruns the continental shelf on the Eastern seaboard of the U.S.).

E) Storms (guided by jet streams) are slower and sticking and, with more water content, are dumping huge torrential rain quantities on cities and widespread regions at higher latitudes than is “normal”.

F) A relatively rare meteorological event called an “atmospheric river” is now much more common, and injects huge quantities of water over several days to specific regions, such as Banff (with water running downhill to Calgary) as well as the Toronto and Colorado events.

It is well past the time that politicians and governments need to act to address these issues. This breakdown of the global atmospheric circulation pattern is well underway now, with a global average temperature only 0.8 oC above the pre-industrial revolution levels. With extreme weather events this terrible now, it is highly irrational, in fact reckless, to continue to have global meetings and discussions about whether or not 2 oC is safe. The increase of only 0.8 oC is already wreaking havoc on global infrastructure. As climate change proceeds and accelerates and we move further from the stable state that we are familiar with (“old climate”) to a much warmer world (“new climate”), we will experience worsening weather extremes and a huge “whip-lashing” of events throughout our present “transition period”.

For a notion of whip-lashing, consider the Mississippi River. There were record river flow rates from high river basin rainfall in 2011, followed by record drought and record low river water levels in December, 2012, making it necessary for the U.S. Army Corp of Engineers to hydraulically break apart rock on the riverbed to keep the countries vital economic transportation link open to barge traffic. Then, 6 months later, the river was back up to record levels. Incredible swings of fortune.

Mitigation at a global level is dysfunctional and inadequate

Adaption has not worked out too well for Calgary, or Toronto, or Colorado, or numerous other places. Let us not be surprised when a similar torrential rain event hits Ottawa, or Vancouver, or even the Alberta tar sand tailings ponds. In Alberta, tailings ponds would be breached and the toxic waters would overflow the Athabasca River and carry the pollutants up into the north to exit into the Arctic Ocean. Such an event would be catastrophic to the environment and economy of Canada.

How can this risk be ignored? Will the latest IPCC (Intergovernmental Panel on Climate Change) report AR5 released on September 27th once again be ignored by society?

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  1. I sit in stunned silence as I fully absorb the implications of the breach of the Athabasca River with those noxious tar sand ponds contents and this toxic stew entering the Arctic.

    You just know there is NO PLAN for how to deal with such an event.

  2. Rachel Carson observed the ocean and warned us almost 50 years ago, but no-one listened. We get what we deserve in life, it is said, so the work of people who really care about our Mother is likely in vain. Unless every fossil-fuelled machine and factory in the world is stopped immediately, all the dire prognostications will come true. Our task now must be to be prepared to help those who will be affected by the catastrophes.

  3. Peg Young – I agree that we are now in adaptation mode. Even if no more emissions were pumped into the atmosphere, the damage is done. It would take hundreds of years for the atmosphere to rebound.

    However, I do believe that there is hope for humanity. We are on the cusp of the next great industrial revolution, one based on renewable energy, new hydrogen energy storage capacity, geothermal, and many more new technologies now emerging. It will be tough but humanity will prevail.

  4. Excellent article, thank you..can’t be more clear. And thanks for keeping these stark reminders coming..shock and awe..hoping we wake can up from the awe and move to action before it really is too late 🙁

  5. As you know Harriet, it’s not too late. A lot of very positive developments are starting to have an impact. We are slowly moving into the post-carbon age. The question – and it’s a big one – remains whether we will be able to get there before destroying everything we love.

    Nice to hear from you.

  6. I wish I was that optimistic. We face tipping points in the very near future that are irreversible, such as loss of coral reefs, destruction of the ocean ecosystems, thawing of the arctic releasing large quantities of methane. The world governments are in apparent agreement to do nothing significant until conditions get really bad (leave it to the next guys in office) but of course if we do that our descendents will get to watch a great mass extinction from ground zero.
    The current public opinion will not support any action that involves anything that makes life more expensive or inconvenient. What we need is something like the national mobilization that occurred after Pearl Harbor, but it isn’t happening. Meanwhile oil and gas drilling is way up in the USA. Our grandchildren will curse this generation.

  7. Wes – there is not a day that goes by that I don’t think about what my grandchildren will say 30-40 years from now. Our generation will indeed by cursed.

    I stay very busy on social media and by publishing my own site which focuses on climate change and the environment. I’m also active with a few groups such as and Citizens Climate Lobby. Plus I do climate presentations since my training as a Climate Leader in Chicago this past summer. But frankly, I don’t think it makes one iota of difference.

    Am I hitting my head against a brick wall?


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