A powerful winter storm, fueled by a whirling mass of Arctic air, brought much of the Sun Belt to a standstill and plunged temperatures into the teens. Warmer temperatures weren’t expected until the ...
When the sun doesn’t shine and the wind doesn’t blow, humanity still needs power. Researchers are designing new technologies, from reinvented batteries to compressed air and spinning wheels, to keep ...
Interest in air filters ... of Heating, Refrigerating, and Air-Conditioning Engineers, or ASHRAE. If you plan to buy a portable air cleaner or purifier, the EPA says you should make sure it ...
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