Climate change deniers sure have some paranoid ideas about polar bears!
The All-Green Episode: mapping the US's carbon footprint, nanopollution in your socks, the truth about solar energy, and turning pollution into DVDs.
The science of cute, a quake-predicting laptop, a gene that lets Olympians dope, and the useful properties of sewer gas.
The Space Episode: a Canadian robot, extrasolar methane, matter vs. antimatter, and Arthur C. Clarke - RIP.
We get a new name (sort of), the Hobbit controversy rages on, science+religion = new sins, and drugs in your tap water.
The all-apocalypse episode: a doomsday vault for seeds, tracking a killer asteroid, targeting antibiotic-resistant bacteria, and contemplating a real-life Cylon attack. You better frakkin' believe it.