Let’s take a minute to mock the Romney campaign’s stance on mercury and other toxic power plant emissions.

A new campaign targets Trader Joe’s, with an interest in prompting industry-wide change.

A few months ago, Brittany Trilford posted a homemade video of herself on YouTube, pleading with world leaders to save the planet. At Rio, she got the chance to deliver that speech in person, and the whole world was watching.

The outcry over New York’s soda ban reveals the murky line between individual and collective spheres — and the line only gets murkier when it comes to climate change.

A storm of tweets cut through the Earth Summit cacophony for a brief moment Monday, but it also reignited old fights between rich countries and poor, and offered a reminder of just how far we still have to go.

The United States, once a regular winner of the polluter-friendly Fossil of the Day Award, has fallen behind the pack, despite some pretty (un)impressive work at the Earth Summit.

Congress goes into vote-o-rama mode to move this year’s monster of a food and farm bill forward.

The Environmental Working Group’s annual Shopper’s Guide to Pesticides is out, with a few important additions.

Plucking seemingly random weeds out of the dirt and sticking them in your mouth may be disconcerting to most city dwellers, but that’s exactly what a group of New Yorkers traveled to New Jersey to do recently.

Take a visual foraging tour with the author of the cookbook “Foraged Flavor.”

Paleontologist Jonathan Payne says we’re not seeing the sixth mass extinction yet. But give us time …

Last January, sustainability planner Naomi Devine set out from Vancouver, British Columbia, planning to ride her bike to the Earth Summit in Brazil. It didn’t work out the way she imagined, but she still made the rest of us look like chumps.

The author talks about her new book, Urban Farms, the difference between a farm and a garden, and how city farmers are moving beyond the trend factor.

With just days to go before world leaders arrive in Rio, international talks are sliding toward the lowest common denominator. But maybe that’s not such a bad thing.

Viruses that devastate fish farms, like the one that broke out last month in British Columbia, could have serious implications for wild salmon populations.