Challenges of Large-Scale Tree Planting Programs

Many of us take actions to improve the environment and make for a better planet. But in a consumerist world where status is all, it can be hard to avoid making choices that negate your original intentions and send you back to square one. It happens in everyday life when picking a car or building a new house. And it happens on a large scale. For example where mass tree-planting occurs in habitats that were never meant to be forested. Shouldn't we know better?