Environmental groups have backed AP Moller-Maersk's drive towards carbon neutrality by 2050.

The Danish boxship giant said this week that it would look to have emissions-free ships commercially viable by 2030 in a bid to meet the target.

“We will have to abandon fossil fuels," Maersk chief operating officer Soren Toft told the Financial Times. "We will have to find a different type of fuel or a different way to power our assets.