Maersk, which spends $7B annually on fuel for its vessels, is investigating ways to reduce fuel consumption and exploring alternative fuels. It has partnered with two projects focusing on developing lignin, a waste product from paper production, into a viable marine fuel. A separate Danish-funded project is also examining lignin and other biofuels. Maersk hopes these projects can produce a biofuel meeting its criteria in order to reduce emissions and secure a sustainable future fuel supply.