South America's Paraguay River, a key thoroughfare for grains, has hit a record low in Paraguay's capital Asuncion, with water levels depleted by a severe drought upriver in Brazil that has ...

South America is experiencing record-breaking fires, which have led to "black rain," green rivers and hazardous air pollution almost 50 times higher than the level recommended by the World Health ...

SOUTH COUNTY — The Tijuana River, with frequent flows of sewage and chemical-tainted waters, is among America’s top endangered rivers, according to a report released Tuesday that spotlights ...