When we arrive at the first site in the Madeira River, researchers from Amazonas State University (UEA) and Harvard position ...

a waterway connected to the Amazon River and home to hundreds of fishing families. Over the following days, the situation worsened as the channel became blanketed with dead marine animals ...

The river's width varies from 1 to 6.2 miles during the dry season, but expands to over 30 miles wide in some parts during the rainy season ...

Boats sit on sandy soil where a river in Colombia's Amazon region would normally be ... future may look like for her children. "It never used to be like this," she says. "They're things that ...