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Saturday, July 31, 2021
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Who Are the Unvaccinated in America? There’s No One Answer.

As coronavirus cases rise across the United States, the fight against the pandemic is focused on an estimated 93 million people who are...

Are ‘Heat Pumps’ the Answer to Heat Waves? Some Cities Think So.

Many climate experts say the long-term solution is to replace most of those fossil-fuel appliances with electric versions powered by a greener grid....

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