Brazil’s northern beaches recently suffered from arrivals of sargassum blooms, a phenomenon affecting Caribbean nations that most scientists so far have associated with nutrients coming from the ...

Both nations claim Santa Rosa de Yavarí, a tiny island of just 3,000 people that sits in the Amazon River, more than a thousand miles from their capitals. By Julie Turkewitz and Mitra Taj Julie ...

Alongside the extraordinary fluvial discharges and the intense tidal currents, vigorous currents induced by the wind and an active western boundary current make this area one of the most energetic ...