Millions of tons of plastic enter the environment every year, killing wildlife, releasing toxins, clogging drains, and marring landscapes. Bans or restrictions on single-use plastics have exploded in popularity in recent years as a means of addressing these problems. Yet these bans remain controversial, with some businesses pushing back against what they consider excessive regulation and others maintaining that banning single-use plastics uses political capital that could be spent advancing more urgent and systemic agendas.

The Clean Water Act (CWA) requires states to calculate total maximum daily loads (TMDLs) of individual pollutants that impair their waters.

Established in over 65 countries and territories, marine protected areas (MPAs) embody a range of habitats, enable the provision of fundamental ecosystem services, protect marine biodiversity and cultural resources, and provide spaces to conduct cutting-edge research and implement innovative policies. Yet management of MPAs can face challenges, including the lack of adequate tools, the need for rules to secure comprehensive monitoring, the vastness of the ocean, and more.