The greenhouse affect is the rise in temperature that the Earth experiences because certain gases in the atmosphere(water vapor, carbon dioxide, nitrous oxide, and methane, for example) trap energy from the sun. Without these gases, heat would escape back into space and Earth’s average temperature would be about 60ºF colder. Because of how they warm our world, these gases are referred to as greenhouse gases.
Global warming brings about the effects of increasing in temperature, increase of sea levels and decrease in land area. By cutting down on environmental pollution,these effects can be slowed down and thus help us in saving the EARTH.
http://news.bbc.co.uk/
http://epa.gov/climatechange/kids/greenhouse.html
