Regulate our climate and to drive weather patterns, and are also home to a vast range of species. here's our climate editor, justin rowlatt. marine scientists send down an array of instruments to assess the impact of warming sea water off the coast of plymouth. have we got a reading for today yet, do you know? i heard them say something around 18 or 19, which is... wow! ..four degrees higher than it should be. one of the most dramatic heat waves ever recorded in uk seas hasjust subsided, part of a global trend of warming waters. well, the ocean temperature, or the ocean itself, is what regulat...