The Walla Walla City Council has passed a new ordinance requiring individuals to clean up chalk messages, symbols, and images in the downtown area.

Anyone who writes or draws with chalk in downtown Walla Walla must clean it up or face a $500 fine, according to a new city ...

Hikers in New Zealand risk polluting the “clearest lake in the world” with a microscopic alga carried on their boots.

Nine Environmental Protection Agency employees in Seattle have been put on leave by the Trump Administration because they ...

For example, a dedicated plant at Honolulu airport could handle airport waste, while the U.S. Navy might establish a plant at ...