Showing posts with label carbon offsets. Show all posts
Showing posts with label carbon offsets. Show all posts

Saturday, June 16, 2007

Carbon Offsets Are Offsetting More Guilt than Carbon

An investigative report in the Guardian continues to strip away the claims about the benefis that have been touted for carbon offsets. According to the report very little carbon has actually been offset for two reasons:

“First, these schemes are unregulated and wide open to fraud.”

“Second…even the most well-intentioned schemes suffer from basic weaknesses in the idea of carbon offsetting - an idea which flows not from environmentalists and climate scientists trying to design a way to reverse global warming but from politicians and business executives trying to meet the demands for action while preserving the commercial status quo.”


It seems likely that no matter how little is actually accomplished by carbon offsets people will continue to buy offsets because it makes one feel like one is doing something about global warming. The main contribution of carbon offsets might be to make money for both those who are honest and have the best intentions and those who are ethically challenged and simply out to make a quick buck. There are of course many other methods available to fight global warming but whether they will be employed in time on a wide enough basis seems at the moment very uncertain.

Saturday, June 02, 2007

Validity of Kyoto Carbon Savings Questioned

A report in the Guardian says that “The Clean Development Mechanism (CDM), which is supposed to offset greenhouse gases emitted in the developed world by selling carbon credits from elsewhere, has been contaminated by gross incompetence, rule-breaking and possible fraud by companies in the developing world….” The CDM is one of the main ways being used by countries trying to reduce greenhouse gas emissions to reach the targets set under the Kyoto Protocol. According to the Guardian report UN paperwork indicated the following:

Most of the concern is around the crucial CDM test of "additionality" - proof that a project is delivering cuts in greenhouse gases that would not otherwise have happened. In an unpublished report, one of the CDM board's expert advisers, Axel Michaelowa, examined all 52 Indian projects which had been registered up to May 2006 and found that a third of them failed this additionality test.
Mr Michaelowa found evidence of projects supplying false information which was then accepted by the companies who were supposed to check it. In one case cited in the report, he accuses an Indian company of making statements which were "blatantly false". Despite his protests, that scheme was approved.

There are enough obstacles to achieving reductions in greenhouse gas emissions on a scale sufficient to prevent catastrophic climate change without integrity being a major problem. Add concerns about integrity of the process and hopes for success grow that much dimmer. Maybe the first step in solving the problem of reducing greenhouse gas emissions should be figuring out a way to reduce human greed. Bring on the psychologists.

Wednesday, April 11, 2007

Carbon Offset Tree Planting Can Spur Global Warming

More evidence that using carbon offsets to plant trees is a bad idea has been presented by scientists from Stanford University and Lawrence Livermore Laboratory in a paper published in the Proceedings of the National Academy of Scientists. According to a report in the Guardian the scientists found that tree planting increases warming unless it occurs within a thin strip of tropical land at the equator. The problem with planting trees elsewhere is that whereas grassy areas and snow reflect a lot of sunlight back out of the atmosphere, trees, being dark in color, absorb most of the suns rays. This soaking up of the heat overwhelms the cooling effect of absorbing the greenhouse gas carbon dioxide. In areas near the equator trees promote the formation of convective clouds which produce cooling and the overall effect of adding trees in such tropical areas is cooling.

Although it appears that planting trees outside of the tropics increases global warming the scientists by no means advocate chopping down trees in nontropical regions to combat global warming since trees have many important functions such as providing habitat for various animals and plants, protecting watersheds, etc. It therefore appears that outside of the tropics that the main goal should be to preserve the forests that we already have.

Tuesday, February 13, 2007

A Presidential Campaign Goes Carbon Neutral

Running for president of the United States these days can generate a lot of carbon dioxide emissions with all the plane flights crossing the country, offices churning out campaign literature, and so forth. According to a report in the Contra Costa Times one of the Democratic presidential candidates, Tom Vilsack, former governor of Iowa, has decided to try to offset all of the carbon dioxide emissions that his campaign produces. His strategy is based on paying money to a company in Vermont that invests in renewable fuels. With regard to global warming, Vilsack’s communications director is quoted as saying “No question that this is one of the, if not the most important issue in the presidential campaign.” This suggests that Vilsack really “gets it.”

It will be interesting to see if any other presidential candidates attempt to elevate global warming as an issue to the level that Vilsack appears to be trying to do. Since Vilsack’s strategy includes the controversial topic of carbon offsets this could make him a political target as well as someone to emulate.