
US air quality report finds a sharp uptick in pollution, with the hardest-hit cities in California
CNN
The US saw the highest number of "very unhealthy" and "hazardous" air quality days between 2018 and 2020 than it ever had before, according to a report released Thursday by the American Lung Association.
After a steady 23-year decline in US pollution levels through 2017, the American Lung Association's State of the Air 2022 report found a sharp uptick in pollution over the past five years.

The governments of Mexico and the United States signed a memorandum of understanding on Thursday to fund and expedite several wastewater treatment projects in the Tijuana River basin. Untreated wastewater continually affects residents living along the river, which flows across the border from Tijuana and through several of San Diego’s southern neighborhoods.