Satellite data reveals 21% of oceans have darkened, affecting photic zones and marine life. Researchers warn of severe effects on global marine life and ecosystems.

Seafood shoppers might notice higher prices, recreational divers and snorkelers will find murkier waters, and even worse; ...

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

Several key moments in Earth's history help us humans answer the question "How did we get here?" These moments also shed ...