Nature, Published online: 14 October 2026; doi:10.1038/d41586-026-03239-0
Pollution from transport across the Pacific Ocean is raising ozone levels above a region whose own emissions have dropped.Growing plane and ship traffic degrade the air of western North America
Nature, Published online: 14 October 2026; doi:10.1038/d41586-026-03239-0Pollution from transport across the Pacific Ocean is raising ozone levels above a region whose own emissions have dropped.