请帮我找一个英语演讲话题

给你一篇我的原创稿子吧，题目是“我最关心的事---环境保护”
"The thing that I'm concerned most - environmental protection"

We all know that environment is so important to ourselves and our future generations. Natural resources have been depleted in an unprecedented scale. The environment has been polluted in a way that never happened before. It is certain that the world and all the living organism on it are going straight to hell. But why those in power, no matter how loud they speak out environmental protection, very few of them really care. The reason is simple. Human beings are greedy in nature. In ancient times, technology is lacking, human beings did not have the right tool to exploit the nature on large scale. With industrial revolution and the development of science and technology, these things can be achieved with relative ease. It can be said that the development of science can be a gospel and a curse on human race at the same time. It is more than certain that the world i