Computer tablet screens glow inside a row of partitioned booths at a new-style Ethiopian police station. There is no ...

Digitally delicate prime numbers become composite with this one weird trick. Math researchers proved these primes exist using the bucket proof method. There are no known examples so far, but ...

Mathematicians have revealed a new category of “digitally delicate” prime numbers. These infinitely long primes turn back to composites faster than Cinderella at midnight with a change of any ...

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The Trump administration has repealed an EPA rule that classified carbon dioxide and five other greenhouse gases as a threat to public health. The endangerment finding underpinned regulations that set ...

The Trump administration’s decision to scrap the “endangerment finding” on Thursday will have wide-reaching consequences for greenhouse gas emissions and, ultimately, could hasten climate change, ...

The Environmental Protection Agency moved to revoke the 2009 endangerment finding, which determined greenhouse gases pose a risk to public health and undergirds federal climate regulations. The move ...