Ask Umbra: Should I sell my Exxon stock?

A reader wonders if it’s unethical to hang on to Big Oil stocks, and if shareholder activism does any good. Umbra offers some centsible advice.

Happy MLK Day! Now get off the couch and do the King proud

Today is the only national holiday that is not really a day "off," but a day "on."

There’s a hole in my plastic-bag law

In Alameda County, Calif., stores are getting around the new plastic-bag ban by calling plastic bags "reusable."

More than half the U.S. is still in drought, and it’s likely to last through April

A little winter isn't going to stop the worst drought in decades.

This tiny transforming apartment will make you hate your current place, but love the future

This apartment is so beautiful I had to throw my couch out the window and cry.

Guess which North American country produces the most garbage. Wrong!

We suspect that this factoid won't make it into tourism brochures.

The sharing economy wants to play with the big kids — is it ready?

Can companies like Airbnb survive in a hostile regulatory environment -- or even rewrite the rules? Maybe, but only if they're honest about what they're doing.

Glam locks: The not-so-secret secret to naturally gorgeous hair

Grist's green-living pioneer, the Greenie Pig, scours the land for alternatives to chemical-laden shampoo, and finds the answer right in the kitchen cabinet.

Soot is the second-most dangerous global warming pollutant

New findings suggest that particulate emissions pose a serious threat to the climate.