Researchers estimate the more than 5 trillion pieces of plastic would fill over 38,500 garbage trucks.
The death leaves 77 animals in the Puget Sound orca population, which is listed as endangered in both the U.S. and Canada
As global warming causes Arctic ice to melt, the Coast Guard is working on creating new shipping lanes so vessels can safely travel through the now open waters.
Protesters in Seattle attempted to push their way into Wooldland Park Zoo’s first board meeting since the zoo decided to shut down its elephant exhibit.
Gov. Jay Inslee says he strongly backs an Obama administration proposal to reduce emissions from the nation’s power plants.
A state study says the increase in crude oil shipments by rail is creating new risks and will require increased safety measures and improved oil spill response and prevention.
An Ellensburg angler has set a new Washington record by catching a Pacific bluefin tuna weighing just over 39 pounds.
Officials at Mount Rainier National Park have temporarily closed park access at the Nisqually entrance because of flooding.
Biologists isolated a virus that is different from any other virus known to infect marine life; it’s dubbed a “sea star associated densovirus.”
Scientists with NOAA, Washington State University and the U.S. Fish and Wildlife Service are seeking a solution to stormwater pollution, a major problem for Puget Sound and other streams and lakes in the nation.