christmas trees http://wemu.org en Issues of the Environment http://wemu.org/post/issues-environment-397 <p>The "green" pros and cons of real and artificial Christmas trees.&nbsp; MSU Horticulture and Forestry professor Dr. Bert Cregg is our guest on this week's Issues of the Environment from WEMU.</p><p></p> Wed, 12 Dec 2012 14:37:52 +0000 Clark Smith 23035 at http://wemu.org