Add Yahoo as a preferred source to see more of our stories on Google. Construction Photography/Avalon / Contributor / Getty Images Tree trimming improves the health and appearance of trees and is ...

A new study of trees from the journal Science indicates that added trees could store 830 billion tons of CO2. The world has room for 900 million hectares of trees. This would be over 1 trillion trees ...

PITTSBURGH — Over 20 volunteers from ASEZ WAO rolled up their sleeves Sunday to help finish a project started two years ago at Riverview Park after an old ceramic pipe broke. “As we know, our old ...

Students in Bethel Park High School’s first-year environmental club helped complete a municipal Shade Tree Commission project at Miners Memorial Park. They also learned some relevant lessons, ...