SAN FRANCISCO — One all-too-familiar side effect of international trade is the outsourcing of jobs, or their movement from developed nations (where production costs are relatively high) to regions where a variety of costs are relatively low.
But the geographic separation of production and consumption also has a less recognized, or at least a less frequently discussed, effect — the "outsourcing" of greenhouse gas emissions, says Steven J. Davis, a geochemist at the Carnegie Institution of Washington in Stanford, Calif.
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