A 2015 report by Ocean Conservancy and McKinsey Center for Business and Environment warns that plastic in the oceans could double to 250 million metric tons by 2025 - one ton for every three tons of fish. China, Indonesia, the Phillipines, Thailand and Vietnam are responsible for half of land-based sources of plastic. The solutions-based report recommends a $5 billion investment per year to reduce plastic-waste leakage by 65% in those countries and 45% globally.