Combined with bacteria, biochar could become an effective one-two punch to keep PCBs out of our air. The biochar provides a safe habitat for the bacteria, and it can attract PCBs from sediment through ...

Russia and China’s forays into the Arctic should prompt more joint training with US allies like Sweden in the region.

A specialized plane, camera and a crew of four are in Alaska to understand the ecosystems of the Bering and Chukchi seas.

As impressive as this system is, now is the time for step-change improvements to benefit all Americans. This is a shared imperative across the aviation ecosystem, and I’ve never felt more confident in ...