Fred Pearce is writer and journalist based in the U.K. Here he discusses the need for more trees and gives a global perspective on the do’s and don’ts of tree planting projects. Listen to Planet Philadelphia live on your radio dial at 92.9 FM  in NW Philadelphia or live stream at https://gtownradio.com/ 4-5:00 PM ET the 1st & 3rd Fridays/month. www.planetphiladelphia.com |@planetphila