i'm terre blair.n this series, we confront the most dangerous challenges facing our survival as a human race, climate change, economic dislocation, nuclear proliferation, social unrest, and we examine each issue by asking if there is an ethical framework that can help us face these problems and solve them. to do that, we'll hear from an extraordinary group of leaders as they search for answers and perhaps inspire us collectively to take action. in this first episode, all of these exceptional men and women agree that climate change is one of the top threats to our existence. will we be up to the challenge? will we take action? ted turner: when i was born 70 years ago, there were just slightly over two billion people in the world, and now, there is almost seven billion. the number of people on the planet has increased by three and a half times in the lifetime of one person. this has never happened before. dalai lama: i often tell my indian friends and all the chinese friends that they combined, these tw

i'm terre blair.n this series, we confront the greatest problems facing the human race and we examine each issue by asking if there is an ethical framework to help us solve them. to do that, we'll hear from an extraordinary group of leaders as they search for answers and perhaps inspire us to take action. in this episode, threats to our economic future. after the world financial system teetered on the brink of collapse in late 2008, many new policies were put in place. and you'll hear about those. but what about other changes, in values, motivations and incentives? after all, markets rise and fall and rise again. but what are the lessons about markets and about ourselves that could mitigate the economic pain? so many lessons, but what have we actually learned? warren: the fall of 2008 was something different than anything any of us had ever seen. ♪ warren: it was even more extreme -- what was going on immediately -- than what was going on in 1929 or the subsequent depression in a big way. the train ca