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


To: maceng2 who wrote (22501)7/25/2008 5:44:43 PM
From: Maurice Winn  Read Replies (1) | Respond to of 36917
 
PB, common sense tells us that the sun shines on the ground and makes it hot, because the ground gets hot during the day when the sun is shining on it, and our feet burn if barefoot on asphalt or iron sands [as at west coast New Zealand beaches].

Common sense also tells us that it doesn't get cold straight away when the sunlight goes away. The heat from the road is gradually radiated into the air and conducted away by contact and convection processes.

Nor does the air get cold immediately. It radiates and reabsorbs and convects upwards if warmer and less dense than surroundings, and water condenses, giving up latent heat of vapourisation, which is then also absorbed and then radiated and convected.

Rain falls down to get some more heat from the ocean where it absorbs more sunlight, gets warm again and gradually evaporates, going into that convection process again. If it gets near the poles, it falls as snow and stays there in Gaia's Graveyard, making Earth colder by reflecting sunlight.

The ice at the poles gradually flows towards the melting zone.

Those processes take time.

Delayed cooling effect. It's common sense.

Mqurice



To: maceng2 who wrote (22501)7/25/2008 11:30:53 PM
From: Thomas A Watson  Read Replies (1) | Respond to of 36917
 
There is no delay effect with the atmospheric heating effect of the Earth by radiation. It all happens at the speed of light and is in equilibrium for all practical purposes.

This is a statement that the 2nd law of thermodynamics is false.

equilibrium for all practical explanations of thermodynamics means the amount of water vapor, the temperature, the winds would not change. It is an idiotic statement.