Want to be green? Consider keeping your "clunker."
The wildly popular "Cash for Clunkers" program is one of a number of policies funded by this year's stimulus package that encourage consumers to make major purchases in the name of the environment.
The program offers incentives for car owners to trade in vehicles getting fewer than 18 miles per gallon for more fuel-efficient ones. State-run rebate programs for Energy Star appliances operate similarly, encouraging consumers to replace their washers, dryers and refrigerators with new models that meet efficiency standards set by government agencies.
These programs presumably benefit both the economy and the environment. Increased consumer spending helps manufacturers and retailers, while increases in fuel efficiency reduce the amount of fossil fuels consumed and greenhouse gases generated.
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But these policies are not necessarily a boon to the environment.
First, even when new cars and appliances are more efficient than the ones they replace, the act of replacing them entails environmental costs not accounted for in the stimulus programs.
Building a new car, washing machine or refrigerator takes energy and resources: The manufacture of steel, aluminum and plastics are energy-intensive processes, and some of the materials used in durable goods, especially plastics, use non-renewable fossil fuels as feedstocks as well as energy sources.
Disposing of old products, a step required by most incentive and rebate programs, also has environmental costs: It takes additional energy to shred and recycle metals; plastic components often cannot be recycled and end up as landfill cover; and the engine fluids, refrigerants and other chemicals essential to operating products end up as hazardous wastes.
Policies that encourage purchases of energy-efficient products may also increase, rather than decrease, energy use by confusing efficiency with consumption. For example, Energy Star refrigerators, which now qualify for rebates in many states, are certified to be 10 to 20 percent more efficient than "standard" models. Yet the Energy Star rating is awarded overwhelmingly to refrigerators far larger than would have been the norm two decades ago, and smaller models of refrigerator, which use less energy simply because they have a smaller volume of air to cool, were not even included in the Energy Star program until 2002.
Consumers who wish to benefit from environmentally friendly stimulus money, then, are pushed toward purchasing "efficient" but relatively large models rather than being encouraged to opt for the smallest refrigerator, with the smallest energy demands, that meets their needs.
Beyond these concrete environmental drawbacks, product-replacement policies also send a message that old things are dirty and inefficient, while new ones are necessarily green and efficient. Under the Cash for Clunkers program, for example, old cars must be traded in for new ones. Yet plenty of used cars exceed the required 22 mpg: The Toyota Prius hybrid, on the market since 2001, gets upward of 40 mpg, and even a 15-year-old Honda Civic gets 28.
By assuming that only new products can be environmentally friendly, these policies lead us to discount the environmental gains that could be made through well-established and low-tech means, such as smaller refrigerators. They also reinforce the idea that all products, even "durable goods," quickly become obsolete -- a notion that leads to overwhelming amounts of environment-despoiling waste.
Cash for Clunkers and related incentive programs have stimulated consumer spending and might well be deemed successful economic policies. They have certainly also pushed some consumers toward more energy-efficient products than they might otherwise have bought. But that in itself does not make them successful environmental policies. The environmental issues surrounding durable goods are too complex to be reduced to consumer-level measures of environmental efficiency.
Nor can being environmentally conscious be conflated with buying the "best" new product. Conscientious consumption may mean repairing a product rather than replacing it to save it from the landfill, or trading in a gas-guzzler for a smaller used car.
If policy-makers sincerely want to use stimulus money to further environmental goals, they need to look past narrow definitions of efficiency, incorporate environmental analyses of product lifecycles from manufacturing through disposal, and refuse to broadly equate "old" with "obsolete." Only then can they hope to craft policies that will serve both the economy and the environment.
The writer is a program researcher in environmental history and policy at the Chemical Heritage Foundation's Center for Contemporary History and Policy in Philadelphia.
THE WASHINGTON POST