New kid on the block picks up relay for ozone

For more than 20 years, changes in ozone over Antarctica have been carefully monitored by a succession of European satellites. This important long-term record is now being added to by the Copernicus Sentinel-5P mission, which ...

China is hot spot of ground-level ozone pollution

In China, people breathe air thick with the lung-damaging pollutant ozone two to six times more often than people in the United States, Europe, Japan, or South Korea, according to a new assessment. By one metric—total number ...

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