A global plastic waste crisis is building, with major implications for health and the environment. Under its so-called “National Sword” policy, China has sharply reduced imports of foreign scrap materials. As a result, piles of plastic waste are building up in ports and recycling facilities across the United States. The European Union is developing a circular economy platform that contains a multi-part strategy to increase plastics recycling and control waste. The United States is unlikely to adopt such sweeping policies at the national level. But for cities and states, especially those where support for environmental protection is strong, it could be a more attainable vision.