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 hydroponic farming
Dear Umbra, What are the advantages of hydroponics, and if it is so good, why isn’t it used more? LukeMitchellville, Iowa Dearest Luke, Plants take up most of their nutrients through their roots, despite all we learned in elementary school about leaves making food from the sun. Soil is a complex conglomeration of minerals, nutrients, […]
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Umbra on genetically modified foods
Dear Umbra, Is most of the genetically modified food that makes its way into our grocery aisles really that harmful? It seems to me that the process of genetic modification is not that far from hybridizing and other tinkering processes that we’ve come to accept. Judi Boston, Mass. Dearest Judi, We don’t know, and that’s […]
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Umbra on the most effective personal eco-actions
Dear Umbra, A lot of the questions people ask you ultimately involve pretty negligible results. When you are talking about the balance sheet of the world, does it really matter if I use a more or less environmentally responsible solution to wash my fruit? I’m wondering what three major concrete changes you’d recommend that people […]
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Umbra on plastic water bottles
Several readers have sent in questions about the dangers of chemical leaching from plastic bottles. A composite version: Dear Umbra, I’ve read some conflicting things about the risks associated with reusing plastic water bottles. For instance, the generally trustworthy folks at the urban-legends site snopes.com have criticized a widely circulated email that claims regular water […]
