Global air readings halted, study links spike in city pollution
TL;DR
A Proceedings of the National Academy of Sciences study found air pollution rose in 46 cities after the Trump administration halted the embassy air-quality monitoring program in March 2025, removing an independent data source that had spurred local action; experts warn the loss of this data threatens health protections and accountability.
Pollution spikes after Trump halted global air-monitoring efforts, report says The Washington Post
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