‘I, Party Cup’: Help Grist make a crazy documentary

Who made the red party cup such a ubiquitous part of our disposable world -- and why'd they do it? Grist needs your help to fund this crazy documentary.


One more way your plane flights are killing everybody

Remember when cars used to give off disgusting clouds of lead-laden smoke? Planes still do that. Some of them do, at least — in particular, those nasty little planes that rich people fly because car traffic is for suckers. According …


Ask Umbra: Why do bike tires suck?

A reader asks why he’s always pumping up his bike tires. Umbra’s answer is absolutely airtight.


Urban naturalist: Molly Steinwald challenges city kids to find the wilderness in a sidewalk crack

City kids are often taught that nature is “out there,” beyond the city limits, but this biologist/photographer/educator says “everyday nature” has the power to transform.


Umbra’s second helpings: The most sustainable forms of birth control

Birth control shouldn't be controversial. But could it be greener? Umbra pulls out an answer.


Guess what’s coming to dinner? The unprocessed food challenge continues

Having sworn off of hot dogs and Doritos, Grist’s green-living pioneer, the Greenie Pig, sets out to a backyard barbecue at a friend’s house. Her mission: to pass on the processed foods without coming off as a jerk.


Wondering which condoms to buy? Science has the answer

Debby Herbenick knows how you feel about condoms. You know you need them, but you just want to go into the drugstore, get them, and get the hell out of there. (This is basically why they invented those self-service checkout …


Vintage ads want you to eat vitamin donuts, put babies in cellophane, and spray everything with DDT

We don't think anything from our time period, besides possibly the Double Down, will cause as much consternation in the future as these vintage ads do now.


Meet Heartland, a just-discovered virus that landed two men in the hospital

It's actually not as big a deal as it sounds. But that won't stop us from going a little Hollywood.