由一只鸟落在树枝上，周围的树被砍光，它在寻找着家园的画引出环保话题。
This is a pathetic and heart-rending scene! In the picture given, a bird, cold and hungry, is squatting on a branch of a lonely tree, overlooking the desolation of trunks left after trees were cut down. The bird seems to be asking herself, Where is my homeland? No one can look at this picture without helping thinking. Who has deprived the bird of her right to have a home?
Of course, we humans are to blame. We are so development-oriented that we almost can sacrifice whatever natural resources in order to obtain a little material gain. It so happens that we cut trees to clear land for farming and level up a lake to build houses. The result of so doing and other destructive developments is deforestation and uncontrollable desertification, thus driving the wild animals homeless like the scene we see above. This mode of progress is no doubt short-sighted and detrimental in the long run.
Some of the harsh lessons we need to learn: first, we should respect the nature and other animals rights to survive. Second, we must waste no natural resources and possibly develop alternative forms of energy to replace the decreasing natural resources. Only in this way can we strike a sustainable development of the world.