Ask Umbra
Grist’s destination for advice on life during climate change. Est. 2002
Past Umbra
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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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Umbra on peeing al fresco
Dear Umbra, If I am going to pee outside, is it more environmentally sound to squat in the back yard where the pee salinates the soil, or next to the road where the liquid runoff can enter sewers, or in the woods where there are no ornamental plantings to disturb, but there might be snakes? […]
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Umbra on garbage disposals
Dear Umbra: When my garbage disposal died recently, I replaced it with a clever new design that uses no electricity (just water pressure), but it led me to wonder which is really kinder to the environment: putting kitchen waste in the disposal or just trashing it? I compost whenever possible, of course, but there are […]
