oceans

North Atlantic right whales used to turn up large numbers off Maine's coast, but now, adapting to climate changes, they are being spotted further north in Gulf of St. Lawrence.

The engineer views a landfill as a living ecosystem, and the plastic that clogs it as a serious threat that crowds out life and never goes away. Can we eliminate the waste before it smothers us?

In the past decade, the Gulf of Maine warmed faster than 99.9 percent of the global ocean. The rapid warming explains why recent fishing policies failed to rebuild the cod population, a study finds.

During its last major drought, Santa Barbara built a desalination plant. It was never used. Now it's being reopened, but critics say desalination is costly, energy-intensive and may harm marine life.