A policy analysis from Duke University, 20 Years of Government Responses to the Global Plastic Pollution Problem: The Plastics Policy Inventory, compiled an "inventory of nearly 300 sub-national, national and international policies instituted between 2000 and mid-2019 to target plastic pollution," and made the entire inventory of policy documents available in a searchable database. The analysis was funded and supported by The Pew Charitable Trusts as part of its work to prevent plastic waste from entering the world’s oceans. Duke discussed the analysis with a webinar panel on June 24, 2020 (YouTube).