Posts Tagged ‘climate change’

Overfishing and the destruction of marine ecosystems – how do they contribute to global hunger?

Monday, May 12th, 2014

Did you know that National Geographic Education has multiple resources that could relate to a number of AFC issues? 

If you are doing Climate Change or Global Poverty & Hunger, you may want to look at the website. Click on the image below.

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Connections among the Carbon Cycle, the 4 laws of Ecology, Pollution and Climate Change

Thursday, May 8th, 2014

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The connection between the First Law, the Second Law and Climate Change

Monday, April 21st, 2014

Environmental Issues

  • Climate Change / Global Warming and Greenhouse Effect¬†– The earth’s atmosphere allows a lot of sunlight to reach the earth’s surface, but reflects much of that light back into space. Some gases trap more sunlight, so that less light reflects back into space. These gases are called Greenhouse Gases, because the effect is like being in a plant glasshouse, or in a car with the windows wound up. The result is a gradual increase in earth’s temperature or Global Warming. The major greenhouse gases are water, carbon dioxide, methane, nitrous oxide, ozone and chlorofluorocarbons (CFC’s).

The main man-made causes are thought to be carbon dioxide and methane from factory, power station and car emissions, the waste products of respiration, logging, the mining of fossil fuels and the breakdown of plant matter in swamps. The long-term effects may include melting of glaciers and a rise in sea level, and a global change in climate and type of vegetation.

 

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photo credit: <a href=”http://www.flickr.com/photos/brightblightcafe/526768620/”>pirano Bob R</a> via <a href=”http://photopin.com”>photopin</a> <a href=”http://creativecommons.org/licenses/by-nc-nd/2.0/”>cc</a>