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Meter-long king crabs invade Antarctic waters, eat everything

On the seafloors of Antarctic basins, the water has warmed by just 0.27 degrees C — but that’s enough to allow giant king crabs to take over the ecosystem and eat everything they find. These suckers are more than three feet across, and they're gobbling up sea urchins, sea lilies, sea cucumbers, and starfish. They're also messing with the make-up of the sea floor. Check out the (terrifyinggggg) video above: The crab looks like an invasive vehicle in a Star Wars movie that's launching a sneak attack on an unsuspecting, peaceful civilization.

Critical List: Obama admin backs more solar projects; Kiribati president wants a new island

The Obama administration provided a loan guarantee to a SolarCity project that would put solar panels on 160,000 military homes — "the larger domestic residential rooftop solar project in history," Energy Secretary Chu said.

Rick Perry thinks he's a smart as Galileo. Or at least that some climate-denying scientists are.

So he’d be pretty irked to see yet more evidence that global warming is real, if he actually read newspapers.

The case of the disappearing bike lane

Sacramento may not have the best built-in bike infrastructure, but some residents are taking matters into their own hands and using guerrilla tactics to make their own.

For sharks, a race to the fin-ish line?

The shark-fin ban sitting on California Gov. Jerry Brown's desk could help curb a barbaric practice and boost dwindling apex-predator populations. But it also highlights the complexities of sustainable shark fishing.

Stamping out hunger with fast food?

As surprising as it sounds, the recent flurry of responses to a program that makes fast food available with food stamps might be unfounded.

The conservative game plan on energy subsidies

Some progressives and Democrats think they can work with Republicans to cut subsidies to dirty energy, but they're getting played.

Bill McKibben talks to Grist amidst ‘chaotic and beautiful’ Tar Sands Action [VIDEO]

Bill McKibben shares his excitement on the last day of tar-sands-pipeline protests in front of the White House.

This is what global warming looks like

Polar scientists visited a glacier to see how much ice it'd lost in two years due to global warming. The results were dramatic.

Memo to EPA chief Lisa Jackson: Defy Obama or resign

EPA Administrator Lisa Jackson has been ordered to sacrifice public health in service to the energy industry. Her only reasonable, conscionable alternatives are to disobey Obama's orders, or step down.

The Dalai Lama and other Peace Prize winners ask Obama to reject Keystone XL

If Obama won't listen to the Tar Sands Action protesters, will he listen to nine of his fellow Nobel Peace Prize laureates? Because they've all but told him -- in their very kind and Peace-Prizey way -- that they'll be embarrassed to share the medal with him if he doesn't.

Nine laureates, including the Dalai Lama and Archbishop Desmond Tutu, have written Obama a letter urging him to nix the pipeline.