energy efficiency
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The Bush administration lets a profitable energy-efficiency program lapse
As of yesterday, Oct. 1, the most successful program in U.S. history for improving energy efficiency in federal buildings is toast. The demise of the Energy Savings Performance Contracting program is no insignificant matter, seeing as how the federal government is the single biggest energy-user in the nation. Taxpayers spend $4 billion per year to […]
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Umbra on dishwashers
Dear Umbra, I’m in the market for a new dishwasher, one that uses as little water and energy as possible and still gets that flatware sparklin’ clean. But I don’t have a lot of dough to blow on appliances. Any thoughts? DeanOrem, Utah Dearest Dean, I really can’t say enough about Consumer Reports and its […]
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Umbra on paper towels vs. hand dryers
Dear Umbra, As an environmental science instructor, I’m often asked which is the better choice when drying one’s hands in a public restroom, assuming both options are available: paper towels, with their associated disposal issues, or hand dryers, with their use of electricity, much of which is wasted. What’s the answer? Curious in Iowa,Dawn Dearest […]
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And other words from readers
Re: Always a Big Turn-off Dear Editor: I just read Umbra’s responses to the lighting questions and must tell you that I have heard significantly different answers. I was informed that it does indeed take more energy to turn on a florescent light and that if you were going to be returning to a […]
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Umbra on mercury in compact fluorescent lights
Dear Umbra, Here in Texas, where it is very hot in the summer (granted, we deserve to be in hell for having produced George Bush), some of us have been enthusiastically switching our light bulbs to cooler compact fluorescents. Is this a bad thing due to the mercury they contain? Lisa Smithville, Texas Dearest Lisa, […]
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Umbra on turning off fluorescent lights
Dear Umbra, You’d be so proud of us! We just had an hour-long meeting about conservation and environmentalism here in our office. In the course of our discussion, the topic of leaving the lights on came up. I am a religious light-switcher, meaning I turn lights off in the bathroom or wherever they’re left on. […]
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And other words from readers
Re: Alternative Energy Crisis Dear Editor: The author takes the position that the Bush Energy Plan is solely focused on “Big Oil” and “King Coal,” particularly with respect to tax breaks lavished on various forms of energy. Here are the facts: Value of the tax incentives for oil and gas proposed in the Bush […]
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Umbra on computers
Dear Umbra, I normally turn my computer off when I leave the office. However, I was recently told that the act of turning on a computer requires more energy than is saved by keeping it off from 6 p.m. to 9 a.m. The person said that it is better to let your computer go into […]
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Humans are gobbling up too much of the sun’s energy
The energy of the sun, captured by plants and passed on to animals, powers everything in our world — dolphins leaping out of the ocean, geese moving across the sky, people stirring their morning oatmeal. Set in our ways. Photo: Art Wolfe, Inc. This truth contains beautiful poetry: It teaches us that in our children’s […]
