A reader asks about faux snow. Umbra says only the sheep should be flocking.
A reader wonders when hydrogen-powered vehicles will rule the road. Umbra takes a look under the hood.
A reader wonders where to look for the greenest threads. Umbra stitches together a plan.
A reader worries about emissions from a coal-fired pizza oven. Umbra slices in.
A reader says her contraceptive is over-packaged. Umbra says you should see the packaging that kids come with these days.
A reader wonders what to do with the low-nutrition food that's being donated for feeding the hungry. Umbra says put it in the bank.
A reader wonders whether two hearts can meat. Umbra says vegan start by accepting each other for who we are.
A reader wonders how best to swaddle the little poo machine. Umbra says it's a wrap.
A reader worries about fracking water tainting beer. Umbra hops to it.
We've devised the world's shortest survey to find out what kind of actions our readers are taking. You know you want to.