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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

  • Umbra on ground-level ozone

    Dear Umbra, Where I live, the air is declared “unhealthful” on many days in the summer due to ground-level ozone pollution. On those days, we have to stay inside until after about 3 p.m. My question is: What causes ground-level ozone to form and what are its reported health effects on adults and children? DeanBakersfield, […]

  • Advice on converting to biodiesel

    Umbra, I own a diesel VW Golf, which I bought thinking it was a better choice for the environment than a gasoline engine. Therefore, I was disappointed to read your message that diesel is probably a worse choice. However, you didn’t talk at all about biodiesel. Can you give us a rundown on this fuel […]

  • Umbra on environmentally friendly communities, again

    Dearest Readers, In my last column, I received a plea from James “Captain Planet” Fitzpatrick of Florida, a firefighter looking to relocate to a small, friendly, environmentally conscious mountain community with good schools, reasonably clean air and water, and no polluting companies or toxic waste sites. As this was obviously a job for discerning Grist […]

  • Umbra on killing your lawn

    Dear Umbra, I just moved into a house with a large backyard. I would like to xeriscape 90 percent of it, but I must first learn how to kill and remove the grass. I’m not a fan of chemicals and would like to find an alternate solution. Most of the yard is very, very brown […]