Articles by Ask Umbra®
The New York Times calls Umbra Fisk "a trailblazer in the field of eco-advice columnists" and "the arch online sage of the new green age." Her latest passion: kale smoothies ... no, sorry, civic engagement, because getting political is the only way we'll get a planet that doesn't burn and a future that doesn't suck. Ask Umbra a question here.
All Articles
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Reader responses on family cars, the internal combustion engine, and more
Dearest Readers, How I enjoy your letters! I’m sorry I’m unable to answer them all; lest you fear that they vanish into the void, I assure you they do not. I read each and every one of them down here in Stacklandia. I must in particular thank those of you who write in to correct, […]
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Advice on driving vs. flying
Hi Umbra, I’m wondering if you have any numbers comparing the fuel efficiency of flying versus driving the average car for the same distance. Also, how does carbon dioxide production compare for the same trip? SteveLoomis, Calif. Dearest Steve, Flight blight? Here’s what I can find so far, courtesy of the Rocky Mountain Institute in […]
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Umbra on scooters
Dear Umbra, I was thinking of buying a scooter with the idea that (in addition to being fun) I would be using a more fuel-efficient means of transportation on days when the weather was good. Then I got the edition of the Daily Grist telling me how dirty motorcycles are. Now I’m worried: Are scooters […]
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Umbra on motorcycles
Dear Umbra, I recently read a claim that “motorcycles produce far more pollution per mile than your typical car, truck, or SUV.” Is that true? I’ve got a friend who’s currently making her (bad-ass) way across country on a Harley — 60 mpg, baby — and we are both curious about the environmental impacts compared […]
