I read a lot of arguments about coal in a carbon-constrained world, given my, um, obsession with it, and I frequently run across these two claims, sometimes in the very same article:
- There's so much coal, and renewables are so far from competitive, that it's not realistic to think we could live without it.
- Coal gasification is awesome, but it needs tons of subsidies. Coal liquefication is awesome, but it needs tons of subsidies. Carbon sequestration is awesome, but it needs tons of subsidies.
We can't live without it, but it can't survive without subsidies. Weird.
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eutopianow Posted 6:48 am
24 Jun 2007
Don't we need to think about what to do with the existing fossil fuel infrastructure? The coal plants are not going to go away anytime soon. Whether or not coal is a long term goal, CO2 capture should be a top priority today.
Supposing we could capture and recycle all the associated CO2 emissions from tail pipes and smokestacks, would coal to liquid then be worth pursuing?
For some interesting angles on the future of coal take a look under Energy here: http://www.eutopianiow.org
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eutopianow Posted 6:51 am
24 Jun 2007
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David Roberts Posted 7:23 am
24 Jun 2007
grist.org
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SustainableGreen Posted 8:31 am
24 Jun 2007
To avoid confusion, let's reiterate:
The question is not whether we could make coal, in its various incarnations, clean if we spent enough money on it. The question is whether the money we'd spend on it could buy us more emissions reductions and displace more oil if spent elsewhere. And the answer to that question is yes, by a country mile.
The original question is based on a series of lies and faulty assumptions. Furthermore, Coal is NOT sustainable. Never has been; never will be.
Big Coal, Clean Coal, and all its manifestations are machinations of the Corporate Oligarchy. Fear them. Find them and drive them out. Kill the memes they propagate.
David
Sustainability For Life
Messages done with sustainable energy, with Wind and Sun!
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GreyFlcn Posted 2:06 pm
24 Jun 2007
http://greyfalcon.net/fossiltaxes.png
http://greyfalcon.net/fossiltaxes2.png
http://greyfalcon.net/nucleartaxes
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Ron Steenblik Posted 3:40 pm
24 Jun 2007
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theBike45 Posted 10:52 pm
24 Jun 2007
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Ron Steenblik Posted 11:06 pm
24 Jun 2007
Quotable!
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Earthling 37379 Posted 11:55 pm
24 Jun 2007
http://www.ilovemountains.org/
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birdboy Posted 4:39 am
25 Jun 2007
waits the demon coal
we summon from beneath the rock
to raise the human goal.
Our lust for power delays our fear
of words that rise up from the dark
"Why would your God have put me here,
if not on Earth, to make your mark?"
This black and frozen river
holds a wealth of power;
a human need which we deliver
more valuable than mountain flower.
So we'll pulverize the wooded crest
and blast the ancient stone;
and when the rubble comes to rest
it chokes the river's dying moan.
Release him from his prison,
and light the demon's fire!
Prosperity will be quickly risen;
We'll stoke the world's desire!
No need to fear his angry breath-
it's the price of easy livin'.
Though all of Nature suffers death,
we humans are forgiven.
For we control the demon coal.
We all exhale his blackened soul.
Let's burn him in our public hearth,
let him rise up from the Earth!
The dark savior of the human race,
will drive us to a better place!
a liberal in redsville
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Sean Casten Posted 5:27 am
25 Jun 2007
My prediction is that 100 years from now sequestration is going to be a technology that people look back at and wonder why we ever thought it was a viable option. Pulling out SOx, NOx and particulate from smokestacks is technically viable (if barely - the parasitics for those are also a big chunk of total plant power consumption), but only because there is proportionally such a small amount to remove. Remember - we're taking those pollutants down to parts-per-million levels. CO2, by contrast is orders of magnitude bigger coming out of any stack - and correlates directly with fuel combustion rather than with combustion technologies. Ergo, if you want to reduce carbon dioxide release to the atmosphere, focus on the front of the pipe (burn less fuel) rather than the end of the pipe (sequester the carbon). Carbon sequestration not only focuses on the wrong end of the pipe, but also causes us to burn more fuel to make up for the parasitics.
So yes, we would need massive subsidies to make it work. But they would be subsidies of a rather foolish sort.
Links to the 25% figure here
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David Roberts Posted 6:10 am
25 Jun 2007
How long that takes is the interesting question.
grist.org
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Nucbuddy Posted 6:24 am
25 Jun 2007
As long as you are predicting, you could throw in a catastrophic accident -- CO2 is poisonous.
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GRLCowan Posted 11:43 am
25 Jun 2007
Like the Lackner experiment, this takes advantage of the ability of CO2 released anywhere in the world to come to a sequestration site on its own. So where the silicates are, one can pulverize them and expose the new surface to air; neither they nor the CO2 have to be shipped anywhere.
Emitters who won't spend the necessary money to capture their own CO2 have a cost advantage over those who do; so like municipal garbage and recyclables collection, this is a classical case where that unfairness can be forcibly remedied by the tax man, who can then pay for a much better job of sequestration to be done, on behalf both of conscientious CO2 producers and of others, than any of them could do on his own.
--- G. R. L. Cowan, former hydrogen-energy fan
How shall cars gain nuclear cachet?
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Delay And Deny Posted 3:07 pm
25 Jun 2007
Do you guys read the papers?
Boeing invented a solar cell that has 40% efficiency.
It's over.
Problem solved.
Go back to your televisions.
John Bailo
You Read It Here First
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GreyFlcn Posted 3:46 pm
25 Jun 2007
MultiJunction solar (i.e. Multiple Solar Panels sandwiched together) cost much more than too much.
That said, Thermal Solar has 35% effeciency and costs a LOT less.
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randino Posted 10:28 pm
25 Jun 2007
I am reading Lost Mountain by Erik Reece right now, and if any of you have missed it, shame on you. Among the sins of coal are: devastation of the environment, the permanent sort from mountains leveled, to streams and farm lands destroyed by acid leakage and coal slurry pond dam breaks. Then you have coal's corruption of our politics, and subversion of regulatory policies. You have the alienation of an entire populace from its landscape in a devil's bargain of jobs vs land & heritage. The jobs that are granted are dangerous, and poison not only miners but their families. Coal is not just the enemy of humanity. It will make you believe in the existence of the Devil.
Finally, I think we weaken our arguments when we just make them about climate change. The entire energy regime we are fighting is rotten to the core with greed, corruption, anti-democratic policies and a smorgasbord of envrionmental crimes. If CO2, melting ice caps, and drowning polar bears did not exist, there would still be an argument to overthrow the old regime and bring to the fore a new energy regime.
Randy Cunningham
Randy Cunningham
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sunflower Posted 11:19 pm
25 Jun 2007
Shutting down big coal will require massive work. Using cogeneration at industries that consume natural gas (food processing is a big one) and saving gas with efficiency and solar heat would be big steps forward towards starting new energy supply industries. Smart grids that shunt power to discretionary thermal loads during emergencies should have a calming effect on power management.
In the long term, building and transportation reform could reduce loads to the point of not needing coal. It is going to require a lot of work.
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sunflower Posted 11:37 pm
25 Jun 2007
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