Old Rocks
Diamond Member
What other option is there other than AGW?
We get our heat from the sun. No other real source. Given the albedo of the earth as a whole, the oceans should be frozen down to the equator. Something in the atmosphere is retaining the heat that is reflected. That was established in the 1820's by Fourier.
Tyndall established that the GHGs in the atmosphere absorp and reradiate IR. That is the source of the additional heat needed to keep the earth in it's present state of warmth.
Now for the last 50 years we have had a pretty steady increase in heat in the oceans and the atmosphere. At the same time, we have had a minor decrease in the heat from the sun.
From about 1850 until present, we have increased the CO2 by 40%, the CH4 by 150%+, and added industrial GHGs that have no natural analog and are thousands of times as effective GHG as CO2. The total aggregate is the equivelent of 460 ppm of CO2.
Seems pretty damned obvious where the additional heat is coming from.
We get our heat from the sun. No other real source. Given the albedo of the earth as a whole, the oceans should be frozen down to the equator. Something in the atmosphere is retaining the heat that is reflected. That was established in the 1820's by Fourier.
Tyndall established that the GHGs in the atmosphere absorp and reradiate IR. That is the source of the additional heat needed to keep the earth in it's present state of warmth.
Now for the last 50 years we have had a pretty steady increase in heat in the oceans and the atmosphere. At the same time, we have had a minor decrease in the heat from the sun.
From about 1850 until present, we have increased the CO2 by 40%, the CH4 by 150%+, and added industrial GHGs that have no natural analog and are thousands of times as effective GHG as CO2. The total aggregate is the equivelent of 460 ppm of CO2.
Seems pretty damned obvious where the additional heat is coming from.