ExclusiveAker BP chief sees sustained oil and gas production, but targets low emissionsInvestments in oil and gas are too low to keep up with demand, says Aker BP chief Karl Johnny HersvikCommitted to investment: Aker BP chief executive Karl Johnny Hersvik is optimistic about the future of oil and gas.Photo: GORM K. GAARE/DNOle Ketil HelgesenStavanger