What is the greenhouse effect???

Question

What is the greenhouse effect???

Answer 1

http://earthguide.ucsd.edu/earthguide/di...

Answer 2

The greenhouse effect is the process in which the emission of infrared radiation by the atmosphere warms a planet's surface. The name comes from an incorrect analogy with the warming of air inside a greenhouse compared to the air outside the greenhouse. The greenhouse effect was discovered by Joseph Fourier in 1824 and first investigated quantitatively by Svante Arrhenius in 1896

The Earth's average surface temperature of 14 °C (57 °F) would otherwise be about -19 °C (-2.2 °F) in the absence of the greenhouse effect.[2] Global warming, a recent warming of the Earth's lower atmosphere, is believed to be the result of an enhanced greenhouse effect due to increased concentrations of greenhouse gases in the atmosphere. In addition to the Earth, Mars and Venus have greenhouse effects.

Answer 3

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Answer 4

A greenhouse is a house structure made of glass where plants are grown in colder places. Being made of glass it allows whatever little sunlight the place gets. The heat however is unable to escape for reasons such as glass being a bad conductor of heat, water vapor inside the greenhouse etc.

The term has since been used to describe the effect of global warming and hence become more associated with it than the original meaning. You can look at the link below for a detailed answer. Simply put when you trap heat in a system through chemical or physical means it is called greenhouse effect.

Answer 5

The absorption of heat by the greenhouse gases like water vapour,methane,CO2,etc. causing global warming.

refer:

http://en.wikipedia.org/wiki/Greenhouse_...

Answer 6

The greenhouse gases are mostly in the lower troposphere. The greenhouse effect is the absorbtion of infrared radiation by those gases and the warming of that part of the atmosphere. That heat is then re-radiated back to the earth's surface.

"greenhouse" is a bit of a misnomer.

Answer 7

The greenhouse effect is the process in which the emission of infrared radiation by the atmosphere warms a planet's surface. The name comes from an incorrect analogy with the warming of air inside a greenhouse compared to the air outside the greenhouse. The greenhouse effect was discovered by Joseph Fourier in 1824 and first investigated quantitatively by Svante Arrhenius in 1896.

Check this out...

http://hyperphysics.phy-astr.gsu.edu/hba...

Regards,

Bharath Reddy

http://bharathreddypunuru.wordpress.com

Answer 8

The greenhouse effect 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.

Have you ever seen a greenhouse? Most greenhouses look like a small glass house. Greenhouses are used to grow plants, especially in the winter. Greenhouses work by trapping heat from the sun. The glass panels of the greenhouse let in light but keep heat from escaping. This causes the greenhouse to heat up, much like the inside of a car parked in sunlight, and keeps the plants warm enough to live in the winter.

The Earth’s atmosphere is all around us. It is the air that we breathe. Greenhouse gases in the atmosphere behave much like the glass panes in a greenhouse. Sunlight enters the Earth's atmosphere, passing through the blanket of greenhouse gases. As it reaches the Earth's surface, land, water, and biosphere absorb the sunlight’s energy. Once absorbed, this energy is sent back into the atmosphere. Some of the energy passes back into space, but much of it remains trapped in the atmosphere by the greenhouse gases, causing our world to heat up.

The greenhouse effect is important. Without the greenhouse effect, 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. Even a little extra warming may cause problems for humans, plants, and animals.

See an animation of how enhancing the greenhouse effect likely contributes to global warming. (Macromedia Flash  Version 5 or higher plug-in required)