Cooler Shade From Older Trees

May 16, 2016

Trees make hot days a little cooler.  Well duh, you might say, everyone knows that shade from trees is good. 

Credit Miguel V./Wikimedia

But a newly-published study from Oregon State University shows that the quality of the cooling depends on the kind of forest. 

Specifically, old-growth forests with tight canopies and dense undergrowth appear to offer more cooling than single-species tree plantations, a distinction that could matter more as the Earth warms. 

Sarah Frey, postdoctoral scholar at OSU's College of Forestry, visits The Exchange with details of the study.