Hacker News: "Traffic and Pollution Plummet as U.S. Cities Shut…" - Qoto Mastodon

Hacker News @HN@qoto.org

Traffic and Pollution Plummet as U.S. Cities Shut Down
https://news.ycombinator.com/item?id=22654316
#hackernews #tech

Mar 22, 2020, 21:12 · · HackerNewsBot · · ·

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