Each year during Central America's dry season (generally between December and April), strong northern trade winds help drive an important ocean process in the Gulf of Panama. These winds push surface waters in a way that allows colder, nutrient-rich water from deep below to rise toward the surface.
This process, known as upwelling, plays a major role in the region's marine life. It fuels highly productive fisheries, helps shield coral reefs from heat stress, a...

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