FirstEnergy returned to Rittman last week with another large donation of trees for the William J. Robertson Nature Preserve.  The Akron-based energy company’s latest gift of roughly 500 trees comes on the heels of a 500-tree donation to the nature preserve last October and a $40,000 gift in December.  FirstEnergy says its tree donations, like the ones in Rittman, are a part of the company’s efforts to reduce its carbon footprint.