Grist List

Climate Skeptics

The Great Billboard War of 2012

Heartland’s crazy billboard featuring crazies was quickly pulled down, but climate groups are fighting fire with fire — or, in this case, billboard with billboard. Forecast the Facts came up with this lovely specimen: But Clear Channel, which apparently controls the billboard system in Chicago, was having none of it, and would not approve it. The company did, however, give its blessing to a sign from Al Gore’s Climate Reality Project, which asks, more tamely, “Who to believe on climate? Heartland … or EVERY National Scientific Academy in the world?” Zing.

Critical List: Massive tariffs for Chinese solar panels; Bike to Work Day

The Commerce Department announced that the U.S. could put tariffs of up to 250 percent on Chinese solar panels imported into the country. It’s Bike to Work Day! First the Arizona Congress wanted crazy legislation to ban all government work on sustainability, now it’s the New Hampshire Congress. So trendy!

Biofuel

The answer to our fuel woes might be monster sweet potatoes

Corn ethanol is a good idea in theory — what’s more renewable than a fuel source you plant and harvest every year? But corn is such an inefficient energy source that if we wanted to meet our biofuel goals with corn ethanol alone, they’d have to shoulder out every other crop. You know what yields more ethanol per acre than corn, though? Sweet potatoes. And you know what yields more ethanol per acre than sweet potatoes? GIANT MOTHERFUCKING SWEET POTATOES OF DOOM.