Definition of Global Warming:
An increase in global average surface temperature due to natural or anthropogenic climate change. Global warming is closely linked to the enhanced greenhouse effect which is an increase in the concentration of greenhouse gases in the atmosphere leading to an increase in the amount of infrared or thermal radiation near the surface.
The greenhouse effect is the rise in temperature that the Earth experiences because certain gases in the atmosphere (water vapor, CO2, N2O, and CH4) 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.
The greenhouse effect is important because without it, the Earth would not be warm enough for humans to live but if the greenhouse effect becomes stronger, it could make the Earth warmer than usual which leads to global warming. Even a little extra warming may cause problems for humans, plants, and animals.
Credits: www.global-greenhouse-warming.com + http://epa.gov/climatechange
What are some of the effects caused by Global Warming?
▪The main effect is an increasing global average temperature.
▪Rising sea levels.
▪Cause severe weather.
▪The extension of tropical diseases.
▪Melting ice caps and other changes in polar regions.
▪More hurricanes.
▪Hotter summers and some animals will not survive in the higher heat.
Some examples of the symbols:
|Prevent forest fires |Protect forests |Embrace public transport|
|Carpool|
Credit: www.designboom.com
|Global warming concept |Global warming egg |
Credit: www.istockphoto.com
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