Sorry, i meant embers. replace all statements of amber with 'ember'WTF is hot amber? Isn't amber fossilized tree sap? Why is it hot?
jc - are you confusing two very different situations? One situation is two objects of differing temperatures coming to equilibrium with no outside power input. They will move in opposite directions until they are the same temp. The other situation is when one object is being warmed by an outside source and the surrounding environment will affect the the equilibrium temperature as the heat dissipates from the source. The objects will never be at the same temperature, instead there will be a gradient of cooling temps as you get further away from the heat source.
ahhhhh. partially consumed fuel that is still hot enough to glow but is no longer producing an open flame?
do you know why people push the embers of a dying campfire together to restart it? because the embers lose less heat next to another ember than they do to the cooler surrounding environment. the same amount of combustion is capable of producing a higher temperature which leads to open flames again. back radiation from ember to ember, less heat loss, higher temperature at the location of the power source (fuel combustion).
why do people wear clothes? the body warms the clothes to a temperature intermediate between the cooler outside environment and the warmer skin. instead of only the smaller amount of environmental back radiation they get the larger amount from their clothes, hence the body needs to burn less food to stay warm.
the Earth's system is similar. the sun heats the surface, which heats the nearby atmosphere, which returns back radiation. this would be true even without greenhouse gases. with GHGs it is like trading a teeshirt for a down jacket. far less radiation escapes directly to space, and the absorbed radiation warms the atmosphere, which then produces more backradiation.
why am I a skeptic who doesnt believe more CO2 will cause a runaway heating? more CO2 is like having more down in your jacket but water is like opening and closing the zipper according to how hot you feel. if it's too hot evaporation cools the surface, convection pumps it away, and the resulting clouds shade the incoming sunlight. the water cycle removes about 100/165 of the surface solar input, direct escape to space through IR bands not absorbed by the atmosphere removes another 40/165. the last 25/165 of surface solar input leaves as radiation pinballing through the GHGs. CO2 is claimed to be somewhere between 5-25% of the greenhouse effect. there have probably been 5-10 doublings of CO2 from the initial bolus.
25W x 25% x 1/5 adds up to a rounding error. easily lost in the water cycle system.