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Politics : The Trump Presidency -- Ignore unavailable to you. Want to Upgrade?

To: i-node who wrote (20470)	6/4/2017 12:32:35 AM
From: puborectalis	Read Replies (3) \| Respond to of 357196

As temperatures started to rise, scientists became more and more interested in the cause. Many theories were proposed. All save one have fallen by the wayside, discarded for lack of evidence. One theory alone has stood the test of time, strengthened by experiments. We know CO2 absorbs and re-emits longwave radiation (Tyndall). The theory of greenhouse gases predicts that if we increase the proportion of greenhouse gases, more warming will occur (Arrhenius). Scientists have measured the influence of CO2 on both incoming solar energy and outgoing long-wave radiation. Less longwave radiation is escaping to space at the specific wavelengths of greenhouse gases. Increased longwave radiation is measured at the surface of the Earth at the same wavelengths.

To: i-node who wrote (20470)	6/4/2017 10:06:53 AM
From: Wharf Rat	Respond to of 357196

" the real world is testing the theories now in the only real way " "Unfortunately, it isn't that simple." It is. "First, we don't know what 'full of CO2' is" Steve was being rhetorical, but how about 5750PPM for "full"? We're not gonna come close to "full". "At this point it is unknown whether Co2 is a primary driver of global warming." No sun, no warmth. Beyond that, CO2: The Thermostat that Controls Earth's Temperature A study by GISS climate scientists recently published in the journal Science shows that atmospheric CO2 operates as a thermostat to control the temperature of Earth. There is a close analogy to be drawn between the way an ordinary thermostat maintains the temperature of a house, and the way that atmospheric carbon dioxide (and the other minor non-condensing greenhouse gases) control the global temperature of Earth. giss.nasa.gov