Ask Umbra
Grist’s destination for advice on life during climate change. Est. 2002
Past Umbra
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Umbra on how climate change will affect us
Dear Umbra, My girlfriend asked me the other day why global warming was going to be so bad for her. I just graduated with a degree in environmental science, and I like to think I learned something in my classes, but I still struggled to give her a concise, straightforward answer. I see new research […]
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Umbra on freshwater
Dear Umbra, What percentage of the Earth’s water is drinkable? What are the remaining percents in categories, such as salt water, polluted water (polluted with what?), and frozen water? And where can I find these statistics? ScottBozeman, Mont. Dearest Scott, About 70 percent of the Earth’s surface is constantly wet. Of all that water, only […]
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Umbra on composting
Dear Umbra, Can you tell me what is the best and most effective composter for a small urban backyard? JoeBaltimore, Md. Dearest Joe, Sort of. It’s ultimately a very personal choice, and one that depends on what you will try to compost and the amount of time you are willing to spend helping the compost […]
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Umbra on wind farms
Dear Umbra, I have been reading lots in the media lately about wind farms. As a supporter of green energy, I would obviously like to see a lot more of them and have long believed that people who oppose them are just another example of the “not in my backyard” mentality: they want a constant […]
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Umbra on odd fruit
Dear Umbra, Yesterday in the grocery store I saw a “golden kiwi.” Is there really such a thing? It was over twice the size of a regular kiwi and the familiar fuzz was not there. It was almost as smooth as a nectarine. When I inquired of the produce representative, she told me that it […]
