On Saturday, for Earth Day, activists in 600 cities around the world assembled in support of science education, science funding and science-driven policy. I participated in the Pittsburgh event. I wanted to express my support for common goals. I wanted to participate with my local science and technology community, which has provided me with education and employment and has been a vital part of the region in the post-steel era. And I wanted to experience the event for myself, to see who would be there and hear what they had to say and how they said it. The walking would also provide a good opportunity to reflect on science in the public sphere.
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