You know about six degrees of separation       But what about six degrees to extinction?《改变世界的六度》海报《改变世界的六度》海报Scientists predict that global temperatures will rise by between one and six degrees over the course of this century and author Mark Lynas paints a chilling, degree-by- degree picture of the devastation likely to ensue unless we act now      A new show on National Geographic Channel, "Six Degrees Could Change the World" narrated by Alec Baldwin, investigates the startlingtheory that earth average temperature could rise six degrees Celsius by the year 2100      "Six Degrees Could Change the World" explores the potential impacts of global warming degree-by-degree through six degrees over the nexthundred years       Filmed on five continents, the program tracks the world's top climate researchers and follows ranchers, photographers, and everyday people to uncover climate trends      Utilizing cutting-edge CGI and hard-hitting scientific data, the HD special will reveal how each potential degree affects us on all levels ?from the bottom of our deepest oceans to the tops of our highest mountains      全球暖化的新闻随处都能听到      有许多理论和想法都跟这个环保危机有关      英国科学家马克‧林纳斯最近发布一则可能是最可怕的新闻      他说假如地球温度再升高六度，整个世界或许都会改变      这可能危害到几十亿人      这个现象也可能在本世纪末之前发生      国家地理频道在《改变世界的6度》节目中探讨这个理论      根据这个理论的说法，六度的气温变化会引起后果不堪设想的灾害      全球野火和台风的数量也许会增加      某些地方的河川跟湖泊可能干涸，冰河也可能溶化      也有证据指出这种现象已经发生      在英国，较为温暖的天气正彻底改变农夫可以种植的作物      美国的暴风雨和澳洲的火灾则摧毁了无数的建筑物和生命      我们的世界的确正在改变，而其后果可能是毁灭性十足的      导演Ron Bowman