Quark Expeditions says it will lower emissions by 86% by chartering in a cleaner expedition vessel newbuilding in an effort to cut its impact on the natural surroundings it showcases in its cruises to the Antarctic.

The Seattle-based company will charter a 167-berth World Explorer powered by four Rolls Royce diesel-powered electric generators for its 2018-2019 and 2019-2020 Antarctica seasons.