Temperature in the canopy shade is 10 degrees cooler than in direct sun. Properly located on fields, the shade provides relief for students and parents.

http://www.fresnobee.com/opinion/readers-opinion/article147261504.html

As National Arbor Day draws attention to trees, here's a closer look at how weird and wonderful these pillars of our communities can be.

http://www.mnn.com/earth-matters/wilderness-resources/blogs/facts-about-trees