This essay is the introduction part of a group research paper about global warming and climate change. This introduction must have a thesis of the whole paper, which mentions about 3 main causes of climate change: CO2 emission in the urban cities, greenhouse effect, and deforestation. These 3 issues will be explained in detail and in-depth in the discussion of the research paper. What to write in this introduction part that should be 5 pages long are: Introduction: Background + thesis statement. Body: Should be creative, you can mention the definition of climate change and global warming, the signs of climate change and effects. Then go over 3 main causes mentioned above. In each cause, you should include solutions. You have to do some research on outside sources in order to write this paper. I will attach the paper of other members in my group about their parts so you can base on what they write to make the correlation to your paper.