The shipping industry's biggest players are shrugging off Trump administration opposition to a global carbon price and are forging ahead with billions of dollars in emissions-reducing investments, according to company officials and a Reuters analysis of data. Europe, Brazil and a host of other nations are pushing the sector, which is responsible for nearly 3% of the world's greenhouse gas emissions, to go green. But, in October, the U.S. and Saudi Arabia, the world's two largest oil producers, successfully spearheaded efforts to postpone by one year a decision on the International Maritime Organization's proposal of a $380-per-metric-ton levy. Some analysts and industry observers initially warned that the absence of such a global framework added complexity to companies' planning and could cause some to pause their green investments.