‘Scientist’ Torstein Hagen bets on hydrogen as cruise’s future fuel despite supply challenges 9 April 2025 LNG is not an option for Viking Holdings chief executiveAuthor: Capt. Johnhttps://www.tradewindsnews.com/sustainability/-scientist-torstein-hagen-bets-on-hydrogen-as-cruise-s-future-fuel-despite-supply-challenges/2-1-1804659