The Good Men Project Become a Premium Member We have pioneered the largest worldwide conversation about what it means to be a good man in the 21st century. Your support of our work is inspiring and invaluable. To Plant or Not To Plant: Weighing Methods of Forest Regeneration When should tree planting or the natural regeneration of forest be used to enjoy economic, climate and ecosystem benefits from reforestation? The role of trees in the biological functioning of many natural ecosystems cannot be overstated. A healthy forest can retain water to prevent droughts, provide food for local animals and people, and keep planet-warming carbon dioxide from being released into the atmosphere.