Puerto Rico's southern region fights for cleaner air, water
Shuttered windows are a permanent fixture in Salinas, an industrial town on Puerto Rico's southeast coast that is considered one of the U.S. territory's most contaminated regions.
from Phys.org - latest science and technology news stories https://ift.tt/GsPn2me
from Phys.org - latest science and technology news stories https://ift.tt/GsPn2me
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