Penfield Marine teams with Macquarie on first carbon-neutral voyage 7 July 2021 Connecticut outfit says voyage involving International Seaways suezmax was the first by a tanker poolAuthor: Capt. Johnhttps://www.tradewindsnews.com/tankers/penfield-marine-teams-with-macquarie-on-first-carbon-neutral-voyage/2-1-1036180