off and i saw what happens if the ship sinks obsolete how do we behave in the water with a survival suit a life jacket without a life jacket which it can happen when it's one of us there so you don't need to be scared you just need to respect your environment. that's big. for them. lars and his colleagues have 8 hours of work ahead of them at dizzying heights a sensor in a wind turbine has stopped working they need to find the fault and repair it. every hour working at sea costs 3 times as much as on land but offshore wind turbines generate twice as much elektra's city. the old boy down i thought it harvesting wind is more efficient at seeing it will you make up kind of no obstacles like lorries or hills so the wind blows mostly i'm kind of the end of it better for the turbines because there are no cross currents i wind is