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Global Warming Fact or fiction?

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by

thi Vu

on 17 November 2014

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Transcript of Global Warming Fact or fiction?

Introduction
Global warming is an increase in the earth's temperatures due to an increase in the greenhouse effect resulting from pollution. The natural greenhouse effect is the process of gases trapping heat naturally and the enhanced greenhouse effect is the heating of the earth due to human activities. Carbon dioxide (CO2) is one of the greenhouse gases that trap the heat. Human activities like the burning of fossil fuels and deforestation is increasing the level of CO2. One natural factor that could also be causing a climate shift is an increase in volcanic activities.
Global Warming debate
Our Opinions
Global warming does exist. The global temperature is increasing and polar icecaps are melting. The sea level is rising. We believe that man is causing global warming, because of the factories they build and the burning of fossil fuels. Humans is causing an increase in greenhouse gases. We should decrease the use of fossil fuels and use alternative energy. In a survey conducted about global warming at UNCG, 78.64% said yes to stricter emission standard for power plants.

Global Warming fact or fiction?
by Thi & Jemila
The global warming debate refers to the public debate over whether global warming is occurring, and if so is humanity at fault. One side believes that global warming is occurring, and that it is also caused mostly by humans. The other side either believes that global warming is not real or that it is not caused by human activity.
G.W does exist
The current warming trend that the planet is experiencing is very likely human-induced and proceeding at a rate that is unprecedented in the past 1,300 years.
Global sea level rose about 17 centimeters (6.7 inches) in the last century due to melting glaciers.
Both the extent and thickness of Arctic sea ice has declined rapidly over the last several decades.
In a global warming survey at UNCG, 83.27% of the people are very or somewhat concern with global warming.
Evidence from all over the world indicates that the earth was hotter 1,000 years ago than it is today. Research shows that temperatures were higher in what is known as the Mediaeval Warming period than they were in the 1990s.
G.W doesn't exist
bibliography
http://www.nrdc.org/globalwarming/
http://www.livescience.com/topics/global-warming/
http://www.ncwarn.org/2013/07/you-cant-deny-global-warming-after-seeing-this-graph-washington-post/
notes and survey
http://www.cagle.com/2013/01/global-warming-threat/
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