Global Waming and Global Climate Change

Write a short essay which includes the following:
Using information from the internet and other reliable sources, define the terms Global Warming and Global Climate Change. Please cite your sources.

*Provide a couple of reasons that people believe Global Warming is occurring. What are some opinions to the contrary?

*Based upon your analysis of the historical temperature data for New York City and Sydney, tell if you believe it is reasonable to conclude that Global Warming is occurring.
Include one graph or chart to support your analysis.