This is sometimes known as the Jevons paradox. Every penny you save on efficiency, you then re-invest in more energy use. ![]() The indulgence trap says that you can’t efficient your way out of waste. ![]() You’ve been given “free” money with which to indulge yourself. Or maybe, since miles are now cheaper, you’ll spend more time commuting so you can live in a bigger house in the outer suburbs. If I give you a more fuel-efficient engine, then hooray! The money you saved on gasoline can now be spent on a bigger vehicle.
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