Talks have been suspended on a treaty to protect biodiversity in two-thirds of the world's oceans outside of national jurisdictions.
The dolphins were spotted and filmed off the coast of southern California. The boat owner estimated more than 100 dolphins were there.
Here’s how oysters are helping to save the planet one shuck at a time.
King tides and rising sea levels are creating an affordable housing crisis in Miami, Florida.
This creature may have inspired legends of sea serpents.
The likely culprit is a toxic algal bloom, fueled by warmer ocean temperatures.
Enrique Peña Nieto says his country is making a "major effort" to save the vaquita.
This winemaker matures his wine at the bottom of the ocean.