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Why wildfire smoke is making air quality so bad across the US
USA TODAY

Why wildfire smoke is making air quality so bad across the US

Here's how a heat dome, dry conditions and shifting winds are helping toxic wildfire smoke travel hundreds of miles and linger over millions

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Why wildfire smoke is making air quality so bad across the US is one of our current travel picks. Here's how a heat dome, dry conditions and shifting winds are helping toxic wildfire smoke travel hundreds of miles and linger over millions.