Silicon Investor (SI) -- The First Internet Community

STOCKTALK

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor. We ask that you disable ad blocking while on Silicon Investor in the best interests of our community. If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.

Politics : Politics of Energy -- Ignore unavailable to you. Want to Upgrade?

To: Hawkmoon who wrote (36400)	12/11/2012 12:03:04 AM
From: Wharf Rat	2 Recommendations Read Replies (2) \| Respond to of 86356

"1897?? Really now?" oops... 1896.. I was close.. I start with Arrhenius, not Tyndall. I'm willing to go back to 1859, tho, if it will make you happy. 1800-1870 Level of carbon dioxide gas (CO2) in the atmosphere, as later measured in ancient ice, is about 290 ppm (parts per million). Mean global temperature (1850-1870) is about 13.6°C. First Industrial Revolution. Coal, railroads, and land clearing speed up greenhouse gas emission, while better agriculture and sanitation speed up population growth. 1824 Fourier calculates that the Earth would be far colder if it lacked an atmosphere. => Simple models 1859 Tyndall discovers that some gases block infrared radiation. He suggests that changes in the concentration of the gases could bring climate change. => Other gases 1896 Arrhenius publishes first calculation of global warming from human emissions of CO2. => Simple models 1897 Chamberlin produces a model for global carbon exchange including feedbacks. => Simple models aip.org "They have rendered themselves completely non-credible" Only to those who deny everything; people like you who say "I am objective and op[en to...", and then proceed to deny each and every finding of science. "As for Nixon, as I recall my youth... there was far more concerned about a looming ice age, than global warming.." You prolly didn't smoke enuf weed. It would have helped your memory. phys.org