Global warming: What is Causing it?. The Warming of the Earth Could Change the Way You Picture the World!. Table of Contents. Slide 1……………………Title Slide Slide 2……………………Table of Contents Slide 3……………………Global Warming Video Slide 4……………………Causes of Global Warming
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The Warming of the Earth Could Change the Way You Picture the World!
Researchers around the world agree that the climate around the world is changing. Most people believe that the world’s population is contributing to this climate change. This idea is called Global Warming.
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What in the world is a CFC?
CFC stands for Chlorofluorocarbons. These are chemicals made up of carbon, fluorine and chlorine atoms. These chemicals are very harmful to the environment and are the one of the main contributors to the ozone depletion. CFC’s are often found in household cleaning solutions, hairsprays, and spray paints.
The overproduction of these gases is leading to the over heating of the earth.
US oceanographer Roger Revelle warns that people are conducting a "large-scale geophysical experiment" on the planet by releasing greenhouse gases. Colleague David Keeling sets up first continuous monitoring of CO2 levels in the atmosphere. Immediately Keeling finds regular year-on-year rise.
Warmest year on record. The 1980s turn out to be the warmest decade, with seven of the eight warmest years recorded up to 1990. Even the coldest years in the 1980s were warmer than the warmest years of the 1880s.
French polymath Jean-Baptiste Fourier suggests the existence of an atmospheric effect keeping the Earth warmer than it would otherwise be. He also uses the analogy of a greenhouse.
1890’s to 1940
Average surface air temperatures increase by about 0.25 °C. Some scientist see the American Dust Bowl as a sign of the greenhouse effect at work.
Most countries are guilty to contributing to global warming, but the most industrialized countries use the most energy. Therefore, they are most to blame for the increase in the Earth’s temperatures.
Here is another
way to look at
Look who uses the most energy!!!
Are you surprised?