2.8K views · 64 reactions | How does environmental science impact global policy? Professor Dan Esty and his research team have explored 20 years' worth of environmental data to address global challenges and impact real change. Watch our video in collaboration with @Nature to learn more and see the latest trends in the 2018 Environmental Performance Index. https://epi.envirocenter.yale.edu/2018-epi-report/introduction | Yale University | Facebook