German researchers are studying using an overhead solar PV system, designed to be removable and reusable, as a sunshade for young fir trees. The pilot, located at a quartz sand excavation site, will ...

Federal officials are enlisting arborists and other tree experts as they scramble to develop a plan to protect one of the world’s tallest non-redwood trees from losing a significant chunk of its ...

Of Washington's 22 million forested acres, the Department of Natural Resources manages about 3 million acres of state land.