here in ununited s stes, it sees to be e the other way around.. what the epa a and the c chemicl companies up done has turned the environment intoto the experiments, anand the people oo become guinea pigs. we are experimental l animals. >> beess are symptoms of something larger. a broken federalal regulatory syststemhat fails s to provide protection for us and our food. >> we are on a crash course. i ththink the bees and their demise is s at messagege to us. >> my grand d kids and their kis -- are we going to b be able e o fix this before, you know -- i do not have any answer. [captions made possible by kcet television] -george e kourounis:s: the popolar bear,, the rld'd's larrst land predator, isununder reatat. as the arctic rmrms, the e ichabitataof the bear is meltg g fast, avingnghem hungry and vulnerlele. their populioion iswindndli asashey struggle to survive the lgeger suers, and now staiing barss are coming into towns searchg g for od.. i've come to theirorld f find t hohow hey'rereoping in a fast-chaining clate.e. can they survi a and apt

here in ununited s stes, it sees to be e the other way around.. what the epa a and the c chemicl companies up done has turned the environment intoto the experiments, anand the people oo become guinea pigs. we are experimental l animals. >> beess are symptoms of something larger. a broken federalal regulatory syststemhat fails s to provide protection for us and our food. >> we are on a crash course. i ththink the bees and their demise is s at messagege to us. >> my grand d kids and their kis -- are we going to b be able e o fix this before, you know -- i do not have any answer. [captions made possible by kcet television] [animal screeching] bill: good morning, bioneers. audience: morning. bill: morning. that's a phrase my wife likes to use when she's here. and unfortunately, she's not here today 'cause she has a bad cold, so i am pinch hitting, and i hope you'll, um, give me some leeway for improvising a bit as we go along. um, i am here to introduce dr. mark plotkin, who is a healer and a man whose life journe t