The invisible climate impact on the cruise ship industry

Greenhouse gas: A cruise ship near the Sydney Harbour. Shipping, like aviation, is seen as one of the more difficult sectors to decarbonise because there aren’t widely available clean alternatives to hydrocarbon-based fuels. — AFP

LONDON: Cruise operators are replacing oil-based fuel with liquefied natural gas (LNG) to run their ships and pitching the shift as a greener way to travel.

An investigation by environmental activists suggests the change could be worse for the climate in the short term.