Word: footprints
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Dates: during 2000-2009
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...grain and oil prices, preceded by overinvestment in refineries over the past few years, badly hurt ethanol producers. Meanwhile, environmentalists have steadily chipped away at ethanol's green credentials. Far from being better for the planet than gasoline, many scientists now argue that ethanol actually has a sizable carbon footprint, because when farmers in the U.S. use their land to grow corn for fuel rather than food, farmers in the developing world end up cutting down more forests to pick up the slack...
...used life-cycle analysis - which takes into account the entire impact of a biofuel from field to vehicle - to show that converting biomass to electricity (to power electric cars) produces 80% more transportation energy than turning it into ethanol (to power a flex-fuel car), with a carbon footprint that is half as small. (Bioelectricity is created the same way fossil fuel-generated electricity is: Biomass is usually burned to generate heat, turning water to steam and driving an electrical generator...
...Kindle, I say: I don’t care. I don’t care that it saves trees—because a lot more die from advertising, napkins, and the farming techniques of South America. I don’t care that the Kindle’s carbon footprint is less than the thousand books I can fit inside it. I don’t care that it reads like a real book—because I still like real books. I don’t even care that it’s convenient and easy to carry. That...
...Harvard Square restaurants, for example, are implementing environmentally-friendly initiatives and minimizing their carbon footprint by recycling, composting, and reducing energy usage...
...Personally, I am willing to make some sacrifices and invest some money in order to have a light environmental footprint,” Solem said, adding that she drives a hybrid car, uses reusable shopping bags, and tries to take public transportation whenever possible...