( CNN ) -- CNN International 's `` Going Green '' is back for another series of special programming with `` Extreme Science , '' a special one-hour documentary that will take viewers on a journey where scientists study global warming in one of the coldest places on earth . Airing July 16 and 17 and hosted by special correspondent , environmentalist and explorer Philippe Cousteau , the documentary will showcase his journey to the Arctic and the significance of the science studied in the extreme conditions . `` Extreme Science '' will be followed by `` Going Green : Green Pioneers , '' the second installment of this year 's green weeks , starting July 18 , 2011 . The week of special in-depth reports looks at the world 's pioneers who are working to make a difference at the front lines of our world 's environmental challenges . The series culminates with `` Green Pioneers , '' a half-hour program hosted by Philippe Cousteau . `` Green Pioneers '' focuses on the people who are using innovative ways to tackle today 's environmental challenges . Watch on CNN International : . Extreme Science . Saturday , 16 July : 4pm ET Sunday , 17 July : 5am ET Saturday , 30 July : 9am , 4pm ET Sunday , 31 July : 5am ET . Going Green : Green Pioneers . Saturday , 23 July : 9am , 4pm ET Sunday , 24 July : 5am ET Tuesday , 26 July : 630am , 130pm ET .
CNN International will air `` Extreme Science , '' exploring global warming in the Arctic , in July 2011 . The documentary will be hosted by CNN special correspondent , Philippe Cousteau . Next up will be `` Going Green : Green Pioneers , '' a week of special reports looking at people who are working to make a difference to the environment . TL;DR A new series on CNN.com explores climate change and its effects around the world.