This show is packed with hard-hit­ting guests. From Aus­tralia, sci­en­tist Matthew Eng­land explains new Antarc­tic sci­ence that lit­er­al­ly changes the whole world. I talk with 11-year-old Zach Fox-DeVol about his We the Chil­dren pod­cast. From Pub­lic Cit­i­zen, Eri­ka Thi Pat­ter­son reports front-line action to clean up car mak­ing — includ­ing the sur­prise worst man­u­fac­tur­er we all thought was so green. I’m Alex Smith. There is no time to waste — lets go.