Earth is poorly named. The ocean ＿＿（31）＿＿ almost three-quarters of the planet. The ocean provides 3 billon people with almost a fifth of their protein, making fish a bigger source of the stuff than beef. Fishing and aquaculture assure the ＿＿（32）＿＿ of one in ten of the world's people. Climate and weather systems depend on the temperature patterns of the ocean and its interactions with the atmosphere. If anything ought to be too big to fail, it is the ocean. Humans have long ＿＿（33）＿＿ that the ocean's size allowed them to put anything they wanted into it and to take anything they wanted out. Changing temperatures and chemistry, overfishing and pollution have stressed its ecosystems for decades. The ocean stores more than nine-tenths of the heat trapped on Earth by greenhouse-gas emissions. ＿＿（34）＿＿ , coral reefs are suffering; scientists expect almost all corals to be gone by 2050. By the middle of this century the ocean could contain more plastic than fish by weight. Ground down into tiny pieces, it is eaten by fish and then by people. Appetite for fish grows ＿＿（35）＿＿ : almost 90% of stocks are fished either at or beyond their sustainable limits. The ocean nurtures humanity. Humanity treats it with contempt.