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Originally Posted by onon
That's not a problem, there's plenty of warming after the co2 starts rising for co2 to be contributing to.
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In that ice core data that shows temperature increases and decreases leading CO2 increases and decreases by hundreds of years, how much of a factor is CO2 in heating the atmosphere given that it's 1/720 times as powerful as water vapor as a greenhouse gas and that it made up about 0.030000% of the atmosphere?
Quote:
Originally Posted by onon
In the last few decades it hasn't shown enough increase to explain the warming in this period of time.
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The energy output of the sun has been increasing (overall) since about 1700 AND the last 70 years of sunspot activity has been higher than at any other period of time going back 8000 years... In addition, the energy output of the sun has been increasing by 0.05%/decade since the 1970's.
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The recent trend of a .05 percent per decade increase in Total Solar Irradiance (TSI) in watts per meter squared, or the amount of solar energy that falls upon a square meter outside the Earths atmosphere. The trend was measured between successive solar minima that occur approximately every 11 years. At the bottom, the timeline of the many different datasets that contributed to this finding, from 1978 to present.
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Perhaps there is a lag for the earth heating to take place.
Quote:
Originally Posted by onon
It takes some time for the global warming trend to drive temperature to that level again.
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And ice core data shows that it takes hundreds of years for the CO2 to catch up to the temperature...
Kramer