A Pigovian tax (also spelled Pigouvian tax) is a tax levied to correct the negative externalities of a market activity. For instance, a Pigovian tax may be levied on producers who pollute the environment to encourage them to reduce pollution, and to provide revenue which may be used to counteract the negative effects of the pollution. Certain types of Pigovian taxes are sometimes referred to as sin taxes, for example taxes on alcohol and cigarettes.

Pigovian taxes are named after economist Arthur Pigou (1877-1959) who also developed the concept of economic externalities.

from the Wikipedia [http://en.wikipedia.org/wiki/Pigovian_tax]

In 2005, carbon emissions from the burning of fossil fuels climbed to a record high of 7.9 billion tons, an increase of some 3 percent from the previous year. Annual global emissions have been increasing since the beginning of the Industrial Revolution in the late eighteenth century, when humans first began burning fossil fuels on a large scale to produce energy. Since the early 1900s, emissions have been rising at an increasingly rapid pace. Annual emissions have grown by a factor of fifteen since 1900, advancing nearly 3 percent a year over that time.

Joseph A. Florence, Earth Policy Insitute[http://www.earth-policy.org/Indicators/CO2/2006.htm]

Recent news on Global Warming is dire, with a new U.N. report arguing that we can expect sea levels to rise for the next 100 years, with devastating results. Much of this was discussed in Al Gore’s “An Inconvenient Truth,” of course, but it’s good to see that the issue is attacking some attention in the profit-media. The question then becomes, of course, what to do about it. One idea gaining ground involves a Pigovian Tax on carbon; the more you put into the atmosphere, the more you pay. Last November, MS-NBC reported on Boulder Colorado’s carbon tax program.

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