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Past Umbra

  • Umbra on green hotels

    Dear Umbra, My husband and I are Americans who own a small budget hotel in Rome, Italy. We try to be as eco-friendly as possible: our cafe is local, organic, and vegetarian, we use compact fluorescent bulbs where we can (although cannot find an alternative for the halogen lighting systems we have), we use eco-friendly […]

  • Umbra on power strips

    Q. Hi Umbra, Around the table at lunch today, my colleagues and I were discussing ways to conserve and be more energy efficient. We’ve all heard that “dormant” appliances still draw energy. We’ve all been told we should plug some of our electronics into a power strip that we can easily flip off when they […]

  • Umbra on solar holiday lights

    Dear Umbra, As the holiday season approaches, I’m trying to figure out how to spread good cheer in home decorations while being sensitive to the environment. Years ago, my husband and I purchased strings of lights that we wrapped around the trunks of palm trees in our front yard. Now the wiser, I’d like to […]

  • Umbra on planes and cars

    Hi Umbra, Which is less harmful to the environment when traveling long distances, flying or driving? A jet puts out a lot of exhaust, but since it carries a lot of people, maybe it’s less than having everyone drive themselves? Craig Denver, Colo. Dearest Craig, Jeepers it was fun to find out the answer to […]

  • Umbra on carbon offsets

    Dear Umbra, I’ve been reading the whole back-and-forth about carbon offsets, and it seems strange to me that most (all?) of the ones I’ve seen fund projects that, while worthwhile, may or may not result in the promised emissions reduction. It seems that a simple way around this problem would be to buy actual emissions […]