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Multiple Houston-area oil and gas facilities that have violated pollution laws are seeking permit renewals
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Iraqis choke under a blanket of dust as sandstorms sweep the country

Iraqis choke under a blanket of dust as sandstorms sweep the country

Orange skies signaled yet another dusty day for millions of Iraqis. It was the seventh such storm in recent months, and experts say more are on the way.
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As temperatures rise in Tucson, so do concerns over health risks linked to higher ozone levels
tucson.com

As temperatures rise in Tucson, so do concerns over health risks linked to higher ozone levels

The link between our increasing temperatures and ozone levels remains in dispute but there's growing scientific consensus that both will get worse in the future.
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