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From deep-sea danger to mega holiday cruises, helping rivers flow and harvesting power, this program goes deep, unlocking the ultimate challenges of our water planet.
2021
7.5
7.0
0.0
2017
1997
2022
8.5
2008
6.0
1978
6.6
2013
1977
6.3
1959
1996
2023
8.2
1974
1.0
1998
5.9
2007
7.4
1991