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Monday, April 6, 2015

The earth is a natural greenhouse and is kept warm by water vapors, carbon dioxide (CO2), and other gases in the atmosphere, which absorb the sun's energy and radiate it back toward the earth. This type of warming is called "natural greenhouse effect." "Enhanced greenhouse effect," on the other hand, causes global climate change due to excessive levels of CO2 in the atmosphere.



Today's Random Fact:

Geologists believe sea levels could rise between seven and 23 inches by the end of the century if current warming trends continue.

Worldwide, one hundred million people live within three feet of sea level, and much of the world's population is clustered in coastal areas.

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Bonus Fact:

The earth has always experienced cyclical bouts of climate change. Recorded temperatures throughout history display graphs of peaks and valleys with occasional extreme periods, such as the Little Ice Age of the seventeenth and eighteenth century and the Medieval Warm Period of the eleventh century.

The last two decades of the twentieth century were the hottest decades in more than 400 years and may have been the hottest decades for several thousand years.

Deserts worldwide are increasing as a result of warmer temperatures. At the end of the year 2007, Australia lost 25 percent of crop production due to desertification.