If they really had pro-human,pro-Earth values ,they"d be doing a lot more for the planet than they are now,and in a less polluting way !!
And whilst you may well know your jibs from your mains,I submit that your nautical history is somewhat lacking !! For hundreds of years, quite large ships,like Lord Nelson"s HMS Victory,or USS Constitution, were able to work in and out of restricted harbours with narrow channels very successfully,without the aid of auxiliary engines or tugs.-- Of course, very few people could do that today,as the skill has been lost----so let the Greens, or Greenpeace, or the jolly Green giant,or whoever thinks that their mad policies will change the world,carry on driving their cars,flying to conferences, or steaming around the oceans in their mechanically inefficient diesel-powered ships until Doomsday !!