Maritime shipping makes up more than 90 percent of the world's trading, according to the International Maritime Organization. That's a whole lot of boats. So the fact that the enormous Danish shipping company Maersk is currently working to make its expansive shipping process sustainable is pretty exciting, as the move could significantly help reduce the industry's carbon footprint. As reported by Good News Network, Maersk plans to replace all of its ships' fossil fuels with renewable fuel sources by next year in order to comply with a new maritime law. Additionally, the brand intends to become completely carbon neutral by 2050.