Created by Skeptical Science Our climate is absorbing a lot of heat. When scientists add up all of the heat warming the oceans, land, and atmosphere and melting the ice, they find our climate is accumulating 4 Hiroshima atomic bombs worth of heat every second.
The energy flows between the surface, atmosphere, and space.
Some of this radiation is reflected back to space, but much is absorbed, warming the surface. Some of this radiation escapes directly to space, while the remainder is absorbed by the atmosphere.
Tell us what you need to have done now! We call this downward flow counter radiation.
It replaces some of the heat emitted by the surface. Counter radiation depends strongly on the presence of carbon dioxide and water vapor in the atmosphere. This absorbed energy raises the temperature of the atmosphere, causing it to emit more counter radiation. So, the lower atmosphere, with its long-wave-absorbing gases, acts like a blanket that traps heat underneath it.
Cloud layers, which are composed of tiny water droplets, are even more important than carbon dioxide and water vapor in producing a blanketing effect because liquid water is also a strong absorber of long-wave radiation.
This mechanism, in which the atmosphere traps long-wave radiation and returns it to the surface through counter radiation, is termed the greenhouse effect. Unfortunately, the term greenhouse is not quite accurate.
Like the atmosphere, the window glass in a greenhouse is transparent to solar shortwave radiation while absorbing and reradiating long-wave radiation. Although energy may change its form from shortwave to long-wave radiation or to sensible heat or latent heat, it cannot be created or destroyed.
For example, suppose that clearing forests for agriculture and turning agricultural lands into urban and suburban areas decreases surface albedo.
In that case, more energy would be absorbed by the ground, raising its temperature.
That, in turn, would increase the flow of surface long-wave radiation to the atmosphere, which would be absorbed and would then boost counter radiation.
The total effect would probably be to amplify warming through the greenhouse effect.They allow solar radiation in through the atmosphere, but prevent the escape of some of the counter radiation back out into space.
These greenhouse gases absorb counter radiation and emit it back towards the Earth, causing a warming of the lower atmosphere.
Kdown is income direct and diffuse solar radiation or insolation.. Kup is shortwave radiation reflected from the Earth's surface back to space.. Ldown is counter-radiation because of the greenhouse effect.. Lup is the emission of longwave radiation from the Earth's surface back to space.
Counter radiation and Greenhouse gasses lower atmosphere (long wave absorbing gases) acts like a blanket that returns heat to the earth; without the greenhouse effect earth would be cold and forbidding.
“No Greenhouse Effect is possible from the way IPCC define it” – on page and explain it in their diagram on page of IPCC Assessment Report 4, The best way to reduce global warming is, without any doubt, cutting down our anthropogenic emissions of greenhouse gases.
But the world economy is addict to energy, which is mainly produced by fossil carbon fuels. Counter Radiation and the Greenhouse Effect As well as being warmed by shortwave radiation from the Sun, the Earth’s surface is significantly heated by the long wave radiation emitted by the atmosphere and absorbed by the ground.