by MrBill » Wed 28 Mar 2007, 03:50:08
I did not know where exactly to post this, so I thought it may as well be here? Printed in its entirety because I did not know which parts to stress. They are all important and relevant about any discussion about post peak oil depletion economics. An inconvenient truth to be sure.
$this->bbcode_second_pass_quote('', '[')b]Robert Samuelson: The inconvenient truth is that the future is coal
"My fellow Americans, people all over the world, we need to solve the climate crisis. It's not a political issue. It's a moral issue. We have everything we need to get started, with the possible exception of the will to act. That's a renewable resource. Let's renew it."Al Gore, accepting an Oscar for "An Inconvenient Truth"
Global warming has gone Hollywood, literally and figuratively.
The script is plain. As Gore says, solutions are at hand.
We can switch to renewable fuels and embrace energy-saving technologies once the dark forces of doubt are defeated. It's smart and caring people against the stupid and selfish.
Sooner or later, Americans will discover that this Hollywood version of global warming (largely mirrored in the media) is mostly make-believe.
Most of the many reports on global warming have a different plot.
Despite variations, these studies reach similar conclusions. Regardless of how serious the threat, the available technologies promise at best a holding action against greenhouse gas emissions.
Even massive gains in renewables (solar, wind, biomass) and more efficient vehicles and appliances would merely stabilize annual emissions near present levels by 2050.
The reason: Economic growth, especially in poor countries, will sharply increase energy use and emissions.
The latest report came last week from 12 scientists, engineers and social scientists at the Massachusetts Institute of Technology.
Called "The Future of Coal,'' the report was mostly ignored by the media. The report makes some admittedly optimistic assumptions: "carbon capture and storage'' technologies prove commercially feasible; governments around the world adopt a sizable charge (aka, tax) on carbon fuel emissions.
Still, annual greenhouse gas emissions in 2050 are roughly at today's levels. Without action, they'd be more than twice as high.
Coal, as the report notes, is essential.
It provides about 40 percent of global electricity. It's cheap (about a third the cost of oil) and abundant. It poses no security threats.
Especially in poor countries, coal use is expanding dramatically. The United States has the equivalent of more than 500 coal-fired power plants with a capacity of 500 megawatts each. China is building two such plants a week.
By 2030, coal use in poor countries is projected to double and would be about twice that of rich countries (mainly the United States, Europe and Japan).
Unfortunately, coal also generates almost 40 percent of man-made carbon dioxide, a prime greenhouse gas.
Unless we can replace coal or neutralize its CO2 emissions, curbing greenhouse gases is probably impossible. Substitution seems unlikely simply because coal use is so massive.
Consider a separate study by Wood Mackenzie, a consulting firm. It simulated a fivefold increase in U.S. electricity from renewables by 2026. Despite that, more coal generating capacity would be needed to satisfy growth in demand.
Carbon capture and storage is a bright spot: catch the CO2 and put it underground.
On this, the MIT study is mildly optimistic. The technologies exist, it says. Similarly, geologic formations -- depleted oil fields, unusable coal seams -- provide adequate storage space, at least in the United States.
But two problems loom: First, carbon capture and storage adds to power costs; and second, its practicality remains suspect until it is demonstrated on a large scale.
No amount of political will can erase these problems. If we want poorer countries to adopt such mechanisms, then the economics will have to be attractive.
Right now, they're not. Capturing CO2 and transporting it to storage spaces uses energy and requires costlier plants. Based on present studies, the MIT report says that the most attractive plants with carbon capture and storage would produce almost 20 percent less electricity than conventional plants and could cost almost 40 percent more.
Pay more, get less -- that's not a compelling argument.
Moreover, older plants can't easily be retrofitted. Some lack space for additions; for others costs would be prohibitive.
To find cheaper technologies, the MIT study proposes more government research and development. The study's proposal of a stiff charge on carbon fuel -- to be increased 4 percent annually -- is intended to promote energy efficiency and create a price umbrella to make carbon capture more economically viable.
But there are no instant solutions, and a political dilemma dogs most possibilities.
What's most popular and acceptable (say, more solar) may be the least consequential in its effects; and what's most consequential in its effects (a hefty energy tax) may be the least popular and acceptable.
The actual politics of global warming defy Hollywood's stereotypes.
It's not saints versus sinners. The lifestyles that produce greenhouse gases are deeply ingrained in modern economies and societies.
Without major changes in technology, the consequences may be unalterable.
Those who believe that addressing global warming is a moral imperative face an equivalent moral imperative to be candid about the costs, difficulties and uncertainties.
The inconvenient truth is that the future is coalAnd of course Mr. Gore's own problems with the inconvenient truths of his own.
$this->bbcode_second_pass_quote('', '[')b]Gore Refuses to Take Personal Energy Pledge Former Vice President Al Gore refused to take a "Personal Energy Ethics Pledge" today to consume no more energy than the average American household. The pledge was presented to Gore by Sen. James Inhofe (R-Okla.), Ranking Member of the Environment and Public Works Committee, during today's global warming hearing.
Senator Inhofe showed Gore a film frame from "An Inconvenient Truth" where it asks viewers: "Are you ready to change the way you live?"
Gore has been criticized for excessive home energy usage at his residence in Tennessee. His electricity usage is reportedly 20 times higher than the average American household.
It has been reported that many of these so-called carbon offset projects would have been done anyway. Also, carbon offset projects such as planting trees can take decades or even a century to sequester the carbon emitted today. So energy usage today results in greenhouse gases remaining in the atmosphere for
decades, even with the purchase of so-called carbon offsets.
"There are hundreds of thousands of people who adore you and would follow your example by reducing their energy usage if you did. Don't give us the run-around on carbon offsets or the gimmicks the wealthy do," Senator Inhofe told Gore.
"Are you willing to make a commitment here today by taking this pledge to consume no more energy for use in your residence than the average American household by one year from today?" Senator Inhofe asked.
Senator Inhofe then presented Vice President Gore with the following "Personal Energy Ethics Pledge:
As a believer:
· that human-caused global warming is a moral, ethical, and spiritual issue affecting our survival;
· that home energy use is a key component of overall energy use;
· that reducing my fossil fuel-based home energy usage will lead to lower greenhouse gas emissions; and
· that leaders on moral issues should lead by example;
I pledge to consume no more energy for use in my residence than the average American household by March 21, 2008."
Gore refused to take the pledge.