What is the greenhouse effect and why is it a good thing?

Question

Please explain with detail.
Thankss!

Answer 1

A green house is used in plant culture/nurseries to trap heat. This can be good for plants when you're growing in the temperate areas.

But the term greenhouse effect is used to refer to some gasses (like the greenhouse gasses) that has the effect of trapping heat in the atmosphere, causing global warming. I don't think this is such a good thing.

Carbon dioxide and methane are examples of greenhouse gasses. These are blamed for the currently observed global warming phonomenon. In the 70's-80's, the strongest storms reached only to category 3. Now we hear of category 5 storms - this is attributed to global warming.

Answer 2

The greenhouse effect is where the atmosphere keeps in a certain amount of the sun's energy. This is important because without the greenhouse effect earth would be an average of -18C. The greenhouse effect is created by the atmosphere scattering rays of solar energy into earth and when the earth reflects back 31% (its albedo) to space, the greenhouse effect traps the other 69%.

Answer 3

Building A Greenhouse Plans Easiest!

Answer 4

Well first of all it's not a good thing, it is partially to blame for this global warming. So what is the greenhouse effect. Well here's the deal, when fossile fules are burned, like coal and gas, they release what's called greenhouse gasses, or basicly emissions that go up into the atmosphere and can do a few things like eat away at the ozone. Then those gases trap heat and UV rays on the earth and cause it to heat up, just like in a greenhouse.

Answer 5

The greenhouse effect, discovered by Joseph Fourier in 1824 and first investigated quantitatively by Svante Arrhenius in 1896, is the process in which the emission of infrared radiation by an atmosphere warms a planet's surface. In the case of the Earth, without these greenhouse gases its surface would be up to 30°C cooler. The name comes from an incorrect analogy with the way in which greenhouses are heated by the sun in order to facilitate plant growth. In addition to the Earth, Mars and especially Venus have greenhouse effects.

In common parlance, the term "greenhouse effect" may be used to refer either to the natural greenhouse effect, due to naturally occurring greenhouse gases, or to the enhanced (anthropogenic) greenhouse effect, which results from gases emitted as a result of human activities (see also global warming, scientific opinion on climate change and attribution of recent climate change).

positive feedback

When the concentration of a greenhouse gas (A) is itself a function of temperature, there is a positive feedback from the increase in another greenhouse gas (B), whereby increase in B increases the temperature which, in turn, increases the concentration of A, which increases temperatures further, and so on. This feedback is bound to stop, since the overall supply of the gas A must be finite. If this feedback ends after producing a major temperature increase, it is called a runaway greenhouse effect.

According to some Earth climate models, such a runaway greenhouse effect , involving liberation of methane gas from hydrates by global warming (Clathrate gun hypothesis), has caused the Permian-Triassic extinction event. It is also thought that large quantities of methane could be released from the Siberian tundra as it begins to thaw, methane being 21-times more potent a greenhouse gas as carbon dioxide [3].

A runaway greenhouse effect involving CO2 and water vapor may have occurred on Venus. On Venus today there is little water vapor in the atmosphere. If water vapor did contribute to the warmth of Venus at one time, this water is thought to have escaped to space. Venus is sufficiently strongly heated by the Sun that water vapour can rise much higher in the atmosphere and is split into hydrogen and oxygen by ultraviolet light. The hydrogen can then escape from the atmosphere and the oxygen recombines. Carbon dioxide, the dominant greenhouse gas in the current Venusian atmosphere, likely owes its larger concentration to the weakness of carbon recycling as compared to Earth, where the carbon dioxide emitted from volcanoes is efficiently subducted into the Earth by plate tectonics on geologic time scales

Answer 6

The greenhouse effect is trapping of heat with a carbon dioxide blanket making the whole World warm up. Its very good for boat manufacturer's business as it is melting the ice caps.

Answer 7

The earth has a greenhouse affect cause it traps in the Suns warmth, by mostly water vapor, Otherwise we be as dead as the moon. LOL I can't believe these moron answers

Answer 8

This is when there is too much carbon dioxide in the atmospere created by polution such as cars. This is warming up the atmospere and the ice caps are disolving so the sea level is rising. This isn't a good thing, eventually it will destroy our planet.