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    Do Carbon Offsets Really Work?
    By Jonathon C. | June 24th 2008 11:45 AM | 7 comments | Print | E-mail | Track Comments

    The proliferation of voluntary carbon offset programs seems like a great way for individuals to help fight climate change. But do carbon offset programs really work? That's the question for Bill Stanley, Science Lead for Carbon Strategies, Climate Change Team at The Nature Conservancy.

    Lawrence Hamilton, of Charlotte, VT, asks:

    "Are carbon offset programs and forest protection efforts providing real solutions for reducing global carbon emissions? And how do these programs help reduce pollution from mercury, arsenic and other "baddies" that often accompany carbon emissions?"

    Bill Stanley, Science Lead for Carbon Strategies, Climate Change Team, replies:

    To answer the first question, yes — well-designed carbon offset programs can have a meaningful impact on reducing the carbon emissions that cause climate change.

    Deforestation and land-use changes contribute approximately 20 percent of global carbon emissions. Rigorously-designed, forest-based offset programs can make a real dent in that number.

    To be effective, any offset program needs to meet high standards. These standards include:

    1. Permanence. The most desirable carbon sequestration projects are those where the restored forests are likely to remain intact indefinitely.
    2. Additionality. The project should only include activities that wouldn't have taken place normally, therefore keeping more carbon dioxide from reaching the atmosphere.
    3. Leakage. When sequestration at a site leads to land clearing elsewhere, it is referred to as "leakage." Offset programs should account for and minimize leakage.
    4. Measurement and monitoring. Periodic field measurements of forest growth and associated capture and storage of carbon are essential.
    5. Standards of verification. Throughout the life of a project, standards should be maintained and measured to ensure the project meets its intended carbon sequestration goals.

    Remember Acid Rain?

    While sequestration projects do not significantly impact pollution from mercury and arsenic, they can indirectly help cut down on these pollutants when implemented as part of an effective cap-and-trade system. What we need now is a new cap-and-trade system that focuses on carbon emissions, reducing those gases that are causing global warming.

    Under such a system, industries are given a hard emissions cap. Companies that come in below that cap are given credits that they can trade with those who are not able to meet this cap. A cap-and-trade system is widely credited with drastically reducing factory emissions of the sulfur and nitrogen oxides that cause acid rain. The same kind of program will work to reduce carbon emissions.

    Support a Cap-and-Trade System

    The Nature Conservancy strongly believes that credits from forest carbon projects and activities in the United States and in developing countries should be included in a cap-and-trade system.

    Including incentives for land conservation and restoration in a cap-and-trade program can help lower the overall compliance costs of such a system, increase support for the program and allow for more aggressive emission reduction goals.

    The Conservancy recently began its own voluntary carbon offset program that will help reduce the impacts of climate change and restore critical wildlife habitat.

    Comments

    Hank
    I usually agree with Nature Conservancy - if you're going to send money to someone, send it to people you know are doing good things and not just politics or fomenting hysteria to raise donations. And that's them.

    But cap and trade - don't get me going. Like communism, it is fine on paper and some people may mean well trying to implement it, but it is going to go to a bad place quickly.

    Carbon offsets are no more than environmental confession.

    Do like I plan to do. Which I got the idea from the Ring Leader of Man-Made Global Warming himself, Al Gore. Start your own carbon footprint business. Not only do you charge others, but you can pay yourself to forgive yourself for your carbon footprint! True story! Does it help the hyped guilt go away? It seems to work for Gore.

    While I can see the idea of carbon credits, I am not sure that they work, especially for the largest companies that do the most pollution. It makes it to easy for them to just buy their way out.

    While I admit I have no concrete scientific proof or evidence to go on ( sometimes gut feelings and intuition can still have a logical scientific basis at a deeper unconscious level ), to me it seems that cap and trade carbon credits will have very little positive effect in limiting greenhouse emissions, while at the same time opening the way for a pandora's box of con men and manipulators who abuse it. But as already stated, I don't know how much real world evidence ( or lack thereof ) there is to my skeptical or negative intuition on the matter.

    But perhaps the system could still be effective provided greedy corporations had more of a moral conscience and don't just pass the responsibility on to somebody else ( sort of unlikely ).

    If you need a place to absolve yourself, I have a few acres of bottomland in the Carolinas where my trees will sequester carbon on your behalf. Most of these trees will then be turned into furniture or houses in 15 to 20 years. Others will become wood pulp. How much is it worth to you?