PHILADELPHIA (AP) — As trash and tempers heat up across Philadelphia on Day 8 of a strike by blue-collar city workers Tuesday ...

As trash and tempers heat up across Philadelphia on Day 8 of a strike by blue-collar city workers Tuesday, some residents and ...

Atlanta is now requiring that new roofs be more reflective. Experts say cool roofs are an effective way to save people from ...

In the past two years, without much notice, solar power has begun to truly transform the world’s energy system.

A new study shows entanglement can be reversed—if you plug in a quantum battery. The finding rewrites the rules of the ...

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