Ask Umbra

Grist’s destination for advice on life during climate change. Est. 2002

Past Umbra

  • Umbra on driving in neutral

    Dear Umbra, I have a question about getting the most miles per gallon. If you put your car into neutral at stops or going downhill, do you save any gas? My car is an automatic. JeffVerona, N.J. Dearest Jeff, Another great question we have all pondered. Louisa and her fellow mechanics thought you might save […]

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  • Umbra on deer hunting

    Dear Umbra, My husband kills deer every fall for the “sport” of it. I’m completely disgusted with him and we have bitter arguments. His justification for killing deer is that they will starve over the cold winter and that he is thinning the population so more will survive. My argument is that nature will do […]

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  • Umbra on Roundup

    Dear Umbra, I have a large, organic (hopefully) vegetable garden. However, I occasionally use Roundup around the edges to keep invasive grasses from creeping in. Now, I have been given to understand that Roundup is relatively safe and breaks down almost immediately. What are your thoughts on this subject? I totally trust your judgment. BetsyMichigan […]

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  • Umbra on hot air balloons

    Dear Umbra, There’s a Hot Air Balloon Festival going on in the Hudson Valley right now and I’m watching balloons out my window wishing I had the nerve to go up in one, while also wondering how bad they are for the environment. This isn’t just mild curiosity; you could literally make or break my […]

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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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