A reader tries to ease his bottled-water guilt by using the bottle more than once. Umbra tells him to put a cork in it.
A reader kicks the tires on neighborhood electric vehicles. Umbra gets supercharged.
A reader wonders if it's really safe to wash his paint brushes in the sink. Umbra gives him the three-bucket challenge.
A reader's battery has shuffled off this mortal coil. Umbra says Mexican recycling plants make calamity of so long a life.
A reader wonders how much water has been wasted to raise money for ALS. Umbra says it's a drop in the bucket.
A reader threatens to use an air duster to clean her office. "Drop the spray can and step away from the computer," says Umbra. "We don't want anyone to get hurt."
A reader frets that his buying binge could be bad for the planet. Umbra says this three-ring shopping circus can really get you in a bind.
A reader is considering running for the hills following a rash of shootings in his city neighborhood. Umbra breaks down his options.
To stick or non to stick. That is the question. Umbra says 'tis nobler to stick.