The phrase
"to change the albedo" means to alter the amount of light or heat that a surface reflects.
Full definition
Black carbon can have another indirect effect by
changing the albedo of snow and ice, but that's not the topic of this post.
For example, the upper portions of most clouds are predominantly ice crystals that
change the albedo factor considerably.
Researchers have long proposed that
changing the albedo of a surface could be an effective way of reducing CO2 emissions.
This is largely because melting sea
ice changes the albedo of high latitude oceans, and to a lesser extent because an inversion prevails at high latitudes, especially in winter, whereas at low latitudes the heating is convectively mixed througout the troposphere.
Why did Trenberth
change the albedo from 107Watts / m ^ 2 in 1997 to 101.9 Watts / m ^ 2 for the 2009 version?
5 (c) McGraw Hill Ryerson 2007 Albedo and Climate, Making Predictions About
Climate Change The albedo at Earth's surface affects the amount of solar radiation that region receives.
In models that include indirect effects, different treatments of the indirect effect are used,
including changing the albedo of clouds according to an off - line calculation (e.g., Tett et al., 2002) and a fully interactive treatment of the effects of aerosols on clouds (e.g., Stott et al., 2006b).
My Bearded
dragon changes albedo based on radiation exposure.The same TSI calculation used to derive the 0.07 degrees would clearly give the wrong answer on the average temperature of my lizard.
My analogy to a white stripe painted on asphault is a perfect illustration about a how a tiny amount of adulterant can
greaty change albedo.
If the surface is highly reflective in the infrared, the greenhouse gas could
change the albedo owing to its infrared opacity and cause some warming that way, but that is not the greenhouse effect.
For example, the ice age — interglacial cycles that we have been locked in for the past few million years seem to be triggered by subtle changes in the earth's orbit around the sun and in its axis of rotation (the Milankovitch cycles) that then cause ice sheets to slowly build up (or melt away)...
which changes the albedo (reflectance) of the earth amplifying this effect.
Jim, the bottom line for me is that for the earth to be in radiative thermal equiibrium with the sun, it has not been demonstrated that any change in chemical composition of the earth or atmosphere is able to affect the equilibrium temperature, providing this does
not change albedo.
The changing albedo of the Greenland ice sheet: Implications for climate change.
Black carbon is likely a contributor, as
it changes the albedo of ice sheets and one that is much easier to manage.
Important examples include improved global climate prediction capability, visionary biotechnology to capture and recycle carbon dioxide emissions, or geo - engineering projects to
change the albedo of the earth's surface or atmosphere.
It's an approximation, but we should just have a new spherical system with an albedo a bit different from the first one, and it seems to me implausible that a few CO2 ppm added could
change the albedo of this entire new system.
Doesn't this mean that CO2 is
changing the albedo a tiny bit?
They have to interpret innumerable feedback loops, all the convective forces, the evaporation, the winds, the ocean currents,
the changing albedo (reflectivity) of Earth's surface, on and on and on.
We know the vast amount of coal burned by China to produce manufactured goods (that could have been produced user cleaner energy if not for Kyoto) produces huge amounts of carbon soot that can
change the albedo.