A wave of political demonstrations in recent years has grabbed headlines and helped to reshape the political landscape. But it's an open question as to whether these protest movements actually change opinions in the long run. In a paper in the American Economic Journal: Applied Economics, authors Daniel Hungerman and Vivek Moorthy found that activism can have a lasting impact on local communities. In particular, they found that areas with unusually bad weather on the original Earth Day in 1970, which would have presumably lowered the participation rate, saw weaker support for the environment and worse newborn health outcomes 10 to 20 years later. Hungerman says that while climate change is a global phenomenon, their work is a reminder that bringing people together still makes a difference at the local level. He recently spoke with Tyler Smith about how the first Earth Day shaped communities' views about the environment and what his research contributes to the broader conversation around climate change.

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