Biosphere is the main recording name of Geir Jenssen (born 1962 in Tromsø, Norway). His expertise spans from instruments to hardware and obscure software. Jenssen's signature lies in the sombre sweep of his music. His songs evoke the endless expanse of the arctic. Satellites, dropsondes and nuclear power plants have been among the themes on Jenssen's conceptual albums, revealing a preoccupation with technology and how it interacts with the natural world.