tree rings

EVERETT, Wash. – As I was hiking through the bristlecone pine forests of the Sierra Nevada recently, I stumbled upon a tree barely six inches tall.

By E. Kirsten Peters, College of Agricultural, Human & Natural Resource Sciences PULLMAN, Wash. – On a lark when I was a college student I took a class in field biology. It sounded romantic and I was young, so even though it didn’t really make sense for a geology student to take the senior level […]