A recently converted vegan wonders if it takes more energy to produce cooking oils than it does to make butter. Advice maven Umbra Fisk says she shouldn't waffle.
When a reader in France wonders what role cheese should play in a carbon-conscious diet, advice maven Umbra Fisk explains whether he needs to give Swiss a miss.
A writer wonders if our urban waterways are suffering from exuberant St. Patrick's Day river dyeing. Advice maven Umbra Fisk dives in to the emerald waters to investigate.
When a reader from Vermont asks Umbra Fisk for help unraveling the mysteries of recycling, our fearless advice maven takes the case.
A Grist reader wants to know: What's the big deal about tiny houses? Why not just get an RV? Advice maven Umbra Fisk sizes up this growing trend.
Earth Hour is here, and one group wants to celebrate with a bonfire -- but a worried reader has written to advice maven Umbra Fisk to find out whether that's particulate-ly appropriate.
A reader in Utah is looking for the 'zero-wastiest' way to clean and wonders if microfiber cloths are the answer. Not so fast, says advice maven Umbra Fisk -- those little fibers are big trouble.
A reader from Houston wonders what those cute little laundry soap-pods are actually wrapped in -- and asks advice maven Umbra Fisk whether they do more harm than good.
Why use water once when you can use it twice? Advice maven Umbra Fisk helps a reader in California spin through the details of putting laundry water to work in the garden.