Global Warming I have chosen to speak about Global warming because it is a major scientific issue in the media. Problems facing the environment today are vast and diverse. Destruction of the world's rain forests, the depletion of the ozone layer, air pollution, water pollution, chemical pollution and global warming are just some of the problems that will reach dangerous proportions in the coming decades. The three aspects of global warming I will discuss are: What is global warming? What are the effects of global warming? What are we doing to reduce global warming? Global warming is a greenhouse effect on the Earth. Solar energy is transmitted to earth by the sun. Excess en