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Should I eat farmed or wild salmon? I know that farmed salmon may not be as healthy, and fish farms tend to be environmentally damaging. However, many wild runs of salmon are on the brink and I do not want to contribute to their demise.
Asked by Amy Fowler
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High-speed trains have been in the news recently. I love modern trains, and those who share this view cite financial savings and pollution prevention. Others wonder if it is financially or ecologically sensible to run a line that distance. When, if ever, would a financial break-even point come? What would be the carbon debt to construct such a train line?
Asked by Denny Brown
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How much of an environmental problem will the batteries in alternative fuel cars create? Are they really a sound environmental alternative?
Asked by Lynnae Thandiwe
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There are lots of options out there for eco-friendly clothing, but it's hard to decide on good products, both at the mall and online. Do you have suggestions for product lines or stores that provide eco-friendly options?
Asked by Lisa Dore
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I read years ago that ethanol plants needed to be subsidized in order to make "ends meet." Since then, how much has the efficiency of ethanol-producing technology improved? Is the industry now getting more energy out of the ethanol produced than put in? How dependent is this efficiency on the type of biofuel used (corn, grass, sugar cane)?
Asked by Hector Raynal
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Regarding small, rechargeable appliances—such as cell phones, toothbrushes, cameras, etc: How much energy is consumed when the unit remains plugged into its charger after it has completed charging to 100-percent capacity? Also, does the charger (with no unit attached) consume energy if it remains plugged into the wall outlet?
Asked by Cecilia Lam
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I have often heard questions about assessing the environmental impact of A versus B answered with a common metric in order to compare apples to apples. The metrics are usually in quantity of carbon released or in dollars. Is there a more sophisticated environmental impact index out there that encompasses multiple metrics at once?
Asked by Jana Watson-Capps
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Could you suggest an eco-friendly way to dispose of old laptops?
Asked by Aditi Telang
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Which uses less water, a shower or a bath? This has been an ongoing debate in my home.
Asked by Anonymous
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I often host dinner parties for groups of six to 10 people, and I have always wondered: Should I purchase disposable plasticware or paperware, or is it better to use my flatware and run one or two dishwasher loads? Which uses fewer resources? Which has a less negative impact on the environment?
Asked by Alison Herson
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What is the carbon footprint of all the wretched, canned pop music played incessantly in the retail stores and malls of the world?
Asked by Gregory Wright
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SAGE Archives » 2010 | 2009
