Catchphrases, however tiresome their proliferation, can alert us to important issues. Take "carbon footprint,” an idea now routinely mentioned in corporate ads, political discourse, and environmental advocacy. Recently a new and very important addition to the catchphrase glossary—life-cycle analysis—has morphed from academic writing to climate policy concerns. Indeed it is embodied in a number of current legislative proposals—among them the Waxman-Markey energy bill.
The concept, in pri ...
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