I originally heard about buckthorn at a TEDx event at my local library last year, but I honestly did not do anything afterwards.  I recently saw on the Lake County Forest Preserve District calendar that there was a program at one of the nature centers close to me focused on the removal of buckthorn.  I figured that I would take the opportunity to learn more. (I was the only person in attendance who really did not know what buckthorn even looked like. Everyone else there knew of their buckthorn problem and wanted to find out what to do about it.) Well, I learned a lot!  Buckthorn is found extensively in…