The Swedish government is funding research into the feasibility of using a wind-turbine driven oxygen pump in the Baltic, following studies carried out last year by the University of Gothenburg, which looked at the effect of pumping oxygen-rich surface water to the bottom of two Swedish fjords.

CNN: Can oxygen pump breathe life into ocean 'dead zone?'

He has also worked on wave-powered dynamo which he claimed could produce enough energy to pump and collect water for hydroelectric turbine.

CNN: Lucien Gambarota: Alternative energy pioneer

The revolutionary pump, the Jarvik 2000, uses a turbine to increase the power of each heartbeat.

BBC: Heart pump man thriving