While there are torrential floods in the south, huge swathes of the western United States are still battling some of the worst wildfires in history – and now, some of the unhealthiest air pollution on the planet. (Subscribe: https://bit.ly/C4_News_Subscribe)
In Oregon, where the air quality is so bad, it’s literally off the scale, the state’s governor has declared a major disaster.
Our Washington correspondent Siobhan Kennedy reports.
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