PREVIOUSLY RECORDED: Foreign Policy's Isaac Stone Fish talks about China’s recent revelation that its pollution statistics are all wrong. Tony Dokoupil explores cars that run on alternative fuels. Sean Callebs from CCTV America talks about his new milting Arctic documentary, ‘On Thin Ice.’ Ecorithm’s Chris Tagge explains a technology that studies how to make buildings more efficient. Plus, Dokoupil talks to Tom Cridland, the man behind the ’30 year sweatshirt.' Eric Holthaus and Ben Adler discuss President Obama’s clean legacy. Greenhouse airs Thursdays at 12pm ET on Shift.