The 120-mile Tijuana River flows from Baja California into the United States and discharges millions of gallons of wastewater ...

Around 90 percent of the world's quakes pop off in the disjointed string of subduction zones that trace the so-called ring of fire, which stretches in an arc around the Pacific Ocean from the ...

UNESCO's World Heritage Committee has again raised grave fears for the future of the Great Barrier Reef, highlighting the problems of water pollution ...

As coral reefs struggle to adapt to warming waters, high levels of pollution and sea-level rise, ballooning sea-urchin ...