Not long after Antarctica recorded some of its highest-ever temperatures, I joined a group of scientists studying how human activity is transforming the continent.
Estuaries once harbored thousands of otters, and now conservationists want to extend recovery efforts to California's largest estuary: San Francisco Bay.
Could the belugas of Northern Quebec hold the key to preventing mercury intoxication in local Inuit communities?
Off the Georgia coast, a decades-old marine sanctuary has emerged as a template for protection in the U.S. and around the world.
Our current crisis reaffirms the importance of weighing the health benefits of eating fish against chemical exposure risks.