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You are asked to write a paper on the rising temperature of the earth's atmosphere, commonly known as global warming.

1. Formulate two or three questions on the topic of global warming . 

Recent scientific observations have led to concern that human activities could be adversely affecting the earth's climate. In particular, much attention has been focused on global warming or an accelerated 'greenhouse effect' which suggests that more of the earth's heat will be retained in the atmosphere by increasing amounts of heat-absorbing trace gases such as carbon dioxide, chlorofluorocarbons (CFCs) and methane produced as a result of human activities. Scientists believe that if such a warming of the earth’s climate were to occur it would have serious consequences for human activities.

Among the many problems that the environment now faces, global warming due to our relentless burning of fossil fuels and the resultant greenhouse effect must rank at the top. While a general warming trend may not be too serious by itself, it will be the accompanying shifts of rainfall and snowfall patterns, the gradual rise of sea level, the forced migration of ecological systems such as forests, and so forth, that will challenge the resourcefulness and resiliency of future generations.