Many natural resources are disappearing or being wasted on our planet every day. One of the most important resources we are abusing is our trees. Each year, hundreds of thousands of acres of trees disappear in countries all around the world. In some countries, these trees are used for fuel. In other countries, trees are destroyed to build housing developments and shopping centers. Saving trees has become a major cultural and economic issue in many areas of the world.
这篇Essayphd提供的波士顿环境保护代写environment protection的文章, 开头就提出了树木被滥砍滥伐，森林消失的严酷现状，引出保护树木的主题。
Trees are essential to our survival. They are a major part of the process of photosynthesis. Photosynthesis is the process in which green plants use carbon dioxide to produce oxygen, and oxygen is something all of us need. The fewer trees there are, the more this affects our ability to breathe.
Trees are also important in the development of many medicines. The mainstream medical establishment did not recognize this for many years. However, those who use natural medicines have always known how important trees are. Now scientists are agreeing with them. Many drugs come from the leaves of certain trees, along with other herbs and plants.
In rural areas, farmers have always known how important trees are to soil conservation. This is why you'll usually see trees lining a field. Tree roots help keep the soil in place, and are also a factor in water distribution deep beneath the ground.
To sum up, trees are so important not only to the environment but also to human society. "I think that I shall never see a poem as lovely as a tree," wrote a poet. I could never agree more. We human should try our best to protect trees.