Garbage collection and disposal is often the most expensive line-item on city budgets in the developing world, and achieving the study’s goal would require $4 billion to $5 billion per year. But that’s not impossible: In the U.K., aid organizations are pushing the government to spend 3 percent of its annual foreign aid on waste collection and disposal in the developing world (currently, it spends 0.3 percent). If that goal were adopted by other rich countries, it could be a game-changer for ocean plastics.