What is the definition of "greenhouse effect"?

Answer

The greenhouse effect is the trapping of heat by a layer of gases surrounding the Earth. The heat is trapped by atmospheric gases such as carbon dioxide, methane, water vapor and nitrous oxide.

The heat coming from the sun that enters Earth's atmosphere is reflected back toward space. This reflected heat is redirected back into the atmosphere, where it is held by the layer of greenhouse gases. Because of the greenhouse effect, Earth is warm enough that water can exist as a liquid.

In theory, the amount of greenhouse gases should remain constant; however, human activity has contributed to an increased amount of greenhouse gases, such as carbon dioxide, in the atmosphere. This increase in greenhouse gases may lead to global warming, a rise in average temperatures around the world.

Q&A Related to "What is the definition of "greenhouse effect..."
Warming of earth's atmosphere due to heat being absorbed from the sun and being trapped by gases such as, carbon dioxide in the air around the earth.
http://wiki.answers.com/Q/What_is_the_definition_o...
The greenhouse effect was first identified by Joseph Fourier in the year 1824. It in a nutshell purports that greenhouse gases trap heat in the surface-troposphere system. The greenhouse
http://www.ask.com/web-answers/Society/Government_...
An atmospheric heating phenomenon, caused by short-wave solar
http://www.chacha.com/question/what-is-the-definit...
You've heard all about it, but what is the greenhouse effect? The greenhouse effect is the process where heat generated by light is trapped in a transparent container. Just as the
http://www.life123.com/home-garden/green-living/ca...
1 Additional Answer
Ask.com Answer for: definition of the greenhouse effect
Climate Change
Climate change, more commonly known as global warming, is caused by the emission of heat trapping gases produced by vehicles, power plants, industrial processes and deforestation...
Explore this Topic
The greenhouse effect is when infrared radiation is trapped in the atmosphere around the Earth. This happens by the release of gasses into the air. This process ...
The greenhouse effect is a naturally happening process that helps in heating the Earth's surface and atmosphere. It occurs as a result of certain atmospheric gases ...
Heat energy comes to the Earth as sunlight and leaves in the form of infrared radiation, but greenhouses gases trap some of the radiation before it can escape ...
About -  Privacy -  Careers -  Ask Blog -  Mobile -  Help -  Feedback  -  Sitemap  © 2014 Ask.com