Carbon Capture No Silver Bullet for Tar Sands
Keep smoking kids. We need the tax revenue. Trust us, we will cure cancer by the time you get it.
So goes our national political leaders' myopic view of the tar sands. The argument from tar-sands defenders in both the Conservative and Liberal ranks can be fairly summarized as follows: "We know this is bad for us but we have faith that a technological fix called carbon capture and storage will make everything better."
We at WWF pride ourselves on being a science-based organization. We go where the science leads us and it is true that carbon capture and storage has shown some potential.
My colleague Carter Roberts, president of WWF-US, and I have written to President Barack Obama to say that we see carbon storage as a welcome but limited weapon in the fight against climate change.
Specifically, the science tells us that it may be technically feasible (though exceedingly expensive) to capture 90 per cent of the carbon emitted by a new coal-fired generator, but just 10 per cent of the greenhouse gases associated with oil from tar sands.
The governments of Canada and Alberta know this. Their task force on the subject told them as much just a year ago: "Oil-sands operations are very diverse (both geographically and technically) and only a small portion of the carbon dioxide streams are currently amenable for carbon capture and storage."
This knowledge also found its way into the agreement signed by Obama and Prime Minister Stephen Harper. They agreed to "co-ordinate research and demonstrations of carbon capture and sequestration technology at coal-fired plants." References to the tar sands were noticeable by their absence.
Yet the Alberta government's multi-million-dollar, taxpayer-funded public relations campaign uses this technological fairy tale to front a "Dig, Baby, Dig" agenda that would make Sarah Palin blush.
We are fooling no one, except perhaps ourselves. An article in National Geographic's current issue, "Scraping Bottom: The Canadian Oil Boom," has aroused attention and excited responses from all quarters. While perhaps the most graphic, that venerable magazine is far from the only respected international publication casting a cold eye on our tar-sands strategy. Nature, The Guardian, The Chicago Tribune and The New York Times have all recently featured the horrifically sublime wasteland we are making of the Athabaska Valley as the new face of Canada.
From hewers of wood and drawers of water to makers of moonscapes and creators of toxic tailing ponds: What a face for Canada to show the world.
As bad as that image might be, the reality is worse. We could be using our enviable natural and human capital to lead the global fight for a sustainable 21st-century economy, creating lasting jobs and a stable climate.
Instead of investing in solutions to the problem that will almost certainly define our children's generation, we are spending untold billions to dig a deeper hole for them. While the rest of the world searches for a low-carbon path to growth, we are betting the national economy on a carbon footprint deeper than even conventional fossil fuels.
We will not be remembered well for this.
We can stabilize the climate and create new jobs by making greener cars and plugging them into a smart, green grid powered by Canada's abundant sources of renewable energy. We can achieve energy security through smarter urban planning and better public transit. And we can create a better future by getting freight off our highways and back onto our railroads and sea lanes.
Ultimately, if tar-sands supporters believe the arguments they make, they will support absolute emission limits, such as those recommended by the Nobel Prize-winning scientists of the Intergovernmental Panel on Climate Change.
That would subject tar-sands investment dollars to fair market competition with lower carbon sources of energy. With carbon capture and storage an imminent reality, there would be no reason to resist hard emission controls. In short, if our political leaders are so sure the cancer cure is just around the corner, let's see them take up smoking for themselves.
Don't hold your breath waiting for this to happen. Why take the risk when you can outsource it to the next generation?
Canadians deserve a more honest debate about tar-sands development. If the leaders of our two major national parties cling to the outdated notion that we need to endure environmental devastation to grow the economy, then let them say so. They will find themselves espousing a view that is seriously offside with the values of Canadians and increasingly out of step with the rest of the world.
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5 Comments so far
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www.connectsharp.com
This is the next big issue for Canada. Mr Butts writes an excellent piece. Greenpeace is on the ball on this one.
Though not a Candadian, I do have experience evaluating heavy oil development in Venezuela. I would suggest a moratorium on all new projects be instituted until this controversy can be sorted out with regard to the carbon footprint and local environmental impacts that these projects might produce (such as economic "hyper-growth").
While "Oil Sands" emit significantly more carbon to the air than conventional crudes do, based on the total chain of activity up to and including, final consumption, this carbon emission (as CO2) is still far less than would be achieved by using coal, which has a "carbon footprint" about 50% larger than oil sands for whatever the end use might be.
As an example, if the bottom third (>700 F ABP, 88 wt%C , HHV=19,000 Btu/lb) of the upgraded (low sulfur/metals) Oil Sands product (e.g. Syncrude) were to be used instead of burning Wyoming coal (actually done) to generate 1GW of electricity in Minnesota, it would require that (@ 7,500,000 Btu/hr/MW-using combined cycle turbines) about 395,000 lb/h of this substance be burned, emitting ~350,000 lb/h of carbon. Activities associated with Heavy Oil mining (using steam), upgrading and transportation by pipeline, would release (approx) another 250,000 lb/h of carbon (allocated to bottom third of barrel) for a total of 600,000 lb/hr of carbon released per GW of electricity produced.
On the other hand, the burning of coal (@ 10,000,000 Btu/hr/MW, 85% C and 10,000 Btu/lb of coal) requires that 1,000,000 lb/hr of coal be burned, releasing 850,000 lb/hr of carbon. But mining, transport (from Wyoming by rail) and feed preparation would consume another ~150,000 lb/hr sending it back up to 1,000,000 lb/hr of carbon released per GW of electricity. In addition, there would be FAR MORE mercury and sulfur pollution as well as water consumption (heating) for coal burning than there would be in the case of burning the heavy Syncrude fraction.
This gives an advantage to (the least valuable part of) Syncrude of 400,000 lb/hr of carbon SAVED (~200 ton/hr) vs the alternative of burning coal from Wyoming. Why isn't this done--because the heaviest third is EVEN MORE VALUABLE AS A FEEDSTOCK FOR A HYDROCRACKER which makes more valuable transportation fuel, than its value when consumed as a boiler (or even turbine) fuel.
Ultimately, the Oil Sands still remain a potentially valuable resource. By creating the needed electricity from an Atmospheric Vortex Engine (which operates on waste heat produced locally during winter and solar during the summer), and producing hydrogen by using electrolysis of water rather than by using valuable natural gas, the carbon footprint of the Alberta operations can be reduced considerably. As a further advantage, the technology to do this is "home grown" in Canada (see http://vortexengine.ca)
If we keep the Tar Sand Jinns in their bottles then we won't need a 'carbon capture' assault
on our treasury and our children's health.
"Keep smoking kids. We need the tax revenue. Trust us, we will cure cancer by the time you get it."
Applies to nuke waste disposal.