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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 salt

    Dear Umbra, What’s up with salt, environmentally speaking? Is it good for the Dead Sea if I buy Dead Sea salt (but then it travels halfway around the world)? Am I getting trace amounts of Bad Stuff in any sea salt these days? Is a big box of Morton iodized salt going to overload the […]

  • Umbra on wave power

    Hello Umbra, I just read a little bit about wave power and was wondering what you think the future potential is for this clean and never-ending energy source? Peter Blomquist Orlando, Fla. Dearest Peter, Wow. I’m a sucker for anything with a good name, like “LIMPET.” There are fun technologies under development to harness the […]

  • Umbra on feeding birds

    Dearest Umbra, Every winter I take pleasure in putting out birdseed to feed the backyard wildlife. I purchase the easily available, run-of-the-mill, found-at-my-local-hardware-store type of seed. My question is, in the big picture … am I doing more harm than good? If the feed I am using is grown conventionally, am I doing a greater […]

  • Umbra on tidal power

    Dear Umbra, Much is made of wind, solar, geothermal, and even wave power, but why doesn’t anyone talk about tidal power? It has more power than wind for the same turbine, without the eyesore of turbines, is totally renewable, and is predictable hundreds of years in advance. Yet nobody talks about it. What’s wrong with […]