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Politics : The Environmentalist Thread -- Ignore unavailable to you. Want to Upgrade?

To: neolib who wrote (19678)	1/16/2008 5:22:47 PM
From: Thomas A Watson	Read Replies (1) \| Respond to of 36921

Clearly you have no idea how it works. Any object exposed to the hundred plus watts/meter^2 of sunlight heats very quickly based up the specific heat of the adsorbing medium and other mechanism of removing the heat. A free standing dark metal will heat enough to fry eggs before it reaches it's black body equilibrium temperature. Simple conduction of air will keep the metal tens of degrees below that black body equilibrium temperature. But plants absorb a good part of the spectrums energy and give it to CO2 and giving off O2 that is lighter thus creating lighter air. The plant also transpires water vapor into the air making it lighter. Also some of the heat generated by absorption is conducted to the air and this light air creates a convection current and this convection current increases the conduction of heat into the air and the plant remains cool. Is 99% of the heat removed from the plants because of conduction related transfer and less than 1% from radiation. Even the metal surface is conducting with convection most of the heat absorbed and not radiating it as long waves. That is how the whole thing works. Most heat transfer is because of conduction and convection and not from radiation. you don't have a clue about how heat transfers in the real world. All you have is your re.Al.Gore.climate.org number crunching babble.