Mother Nature is very unpredictable. The dinosaurs were wiped out, there were Ice Ages and many other natural disasters that have decimated the world. We can not protect the environment fully because when Mother Nature decides it is done there is nothing that we can do to stop it so we just do what we can.
The planet is quickly approaching the number of inhabitants it can support. It is therefore increasingly important to encourage a "green" approach in regards to the consumption of products, while also being careful not to offset the delicate balance of nature and wildlife by limiting the destruction of habitats. If we do not make an honest effort to control population growth and use the planet's resources responsibly, future generations could be on the verge of a major ecological catastrophe.
India's impressive and symbolic act of planting 50 million trees yesterday highlights the capacity of an individual to enact real environmental change. India demonstrated to the rest of the world that we should all be looking for areas of our lives in which we can be more environmentally conscious because through collective action we can help solve environmental problems.
India has taken a big step bu planting so many trees in such a small time, but it is still only a fraction of what needs to be done. Additionally these trees will take a long time to grow, and it will be several years before we see the effects of this action.