web | https://www.msn.com/en-us/weather/topstories/wildfire-smoke-is-reversing-years-of-air-pollution-progress-in-california-and-the-west-new-study-finds/ar-AA1h1lk5 |
author | Paul Rogers |
publication | Mercury News |
date | 2023-09-20 |
web | Marshall Burke, Marissa L. Chi... | Nature | 2023-09-20 | |
web | Stanford University | 2023-09-20 |
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