say for intance you wanted to do agroforestry work in africa
you'd want to be involved with these folks: Trees for the Future
Since 1989, Trees for the Future has been helping communities around the world plant trees. Through seed distribution, agroforestry training, and our country programs, we have empowered rural groups to restore tree cover to their lands. Planting trees protects the environment and helps to preserve traditional livelihoods and cultures for generations.