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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Umbra on calculating CO2 weight
Dear Umbra, I know CO2 is a gas as other greenhouse gases are, and gases are sometimes lighter than air. So I’m wondering: how can gases be weighed in tons? That’s a hell of a lot of gas to weigh even one ton, let alone the millions of tons that are reported to be causing […]
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Umbra on driving versus flying, again
Dear Umbra, Your recent answer to the plane/train question prompts me to ask something that has always bothered me but that my little old brain can’t figure out on my own. I know that planes are worse than other forms of transportation, but the plane is going to fly whether I’m on it or not. […]
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Umbra on diesel hybrids
Dear Umbra, I have been wondering for years now — with the hot trend toward hybrids and the new “clean” diesels hitting the market, why doesn’t anyone talk about a diesel hybrid? Sounds like the best of both worlds to me. Just think: a hybrid running on biodiesel! Is this in the works? Mike H. […]
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Umbra on adult tricycles
Dear Umbra, I want to reduce my carbon footprint. I already take a commuter train to work, but the station is down a steep hill from my house, so I drive the first mile or so in the morning and back up the hill at night. The train station has lock-ups for cycles and I’m […]
