Ashley Ahearn

China has closed its doors to all shellfish imports from an area that stretches from northern California to Alaska. The state of Washington says it's losing as much as $600,000 a week.

Among the shellfish not being harvested is the geoduck, a long-necked clam that can fetch up to $150 per pound in China. It's a major export for the Pacific Northwest.

Across the Western U.S., yearly areas of snowpack are decreasing, and researchers are trying to figure out what that means for everything that relies on the snowmelt — from farms to power plants to a little creature known as the Cascades frog.

It's about 25 degrees on a clear Saturday morning when Gregg Treinish — executive director of Adventurers and Scientists for Conservation, a nonprofit that puts volunteers to work gathering data for scientists around the world — gathers a small group of outdoor adventurers around him near the Duckabush River in the Olympic National Forest in Washington state.

Summertime means motorcycles are on the roads — and many of the best roads snake through our National Parks. Officials say motorcycles are a major contributor to noise pollution in the Parks. Find more environmental stories at EarthFix.

Few people know the orcas of Puget Sound as well as Ken Balcomb.

A researcher with the Center for Whale Research on Washington state's San Juan Island, Balcomb has been studying the whales for more than 30 years.

It takes Balcomb only a few seconds of listening to the squeaks and whistles of underwater whale recordings to recognize the different pods of orcas.

In one recording, Balcomb identifies the group known as the L Pod — the family many people in the area are talking about right now.