In equilibrium to maintain the energy balance of the earth you must have just as
much long wave radiation passing through (and warming) the top layer as before.
Not exact matches
This in turns implies we may have underestimated how
much the opacity to
long wave radiation has increased.
Actually, the case for a tropical thermostat was pretty well established about seven years ago when data showed that the outgoing
long wave radiation during the 90's was
much larger than models said it should have been.
Much of the
radiation from the atmospheric gases, also in the infrared range, is transmitted back to the ocean, reducing the net
long wave radiation heat loss of the ocean.
But it is not — water vapor is
much more important and they both simultaneously absorb OLR, the out - going
long -
wave radiation.
As this
radiation heats the earth's surface, it escapes the earth in the form of
long -
wave radiation; a type of
radiation that is
much more difficult to pass through the atmosphere.
Please do not drag in the «red herring» of
long wave IR
radiation, there is just as
much IR energy exchange going on in caves as out in the fresh air.
The CO2 molecules allow the shorter - wavelength rays from the Sun to enter the atmosphere and strike the Earth's surface, but they do not allow
much of the
long -
wave radiation reradiated from the surface to escape into space.
The temperature determines how
much long wave IR
radiation is emitted by the surface and greenhouse gases.