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Originally Posted by nieuwguyski Manny,
All life -- the billions of humans, the animals we raise, plants, all that -- takes part in a closed carbon cycle. Yes we all exhale carbon dioxide, but our survival depends on plants, that we either eat directly or feed to our livestock, and the plants use photosynthesis to convert carbon dioxide back into oxygen.
Greenhouse gas accumulation occurs when we dig up carbon sources -- coal or oil -- and burn them, putting more carbon dioxide into the atmosphere.... |
OK, so you only told a part of the cycle. If one looks at the thorugh paper
I referenced you will read this at the end of the authors' dicsussion:
"Human activities are believed to be responsible for the rise in CO2 level of the atmosphere. Mankind is moving the carbon in coal, oil, and natural gas from below ground to the atmosphere and surface, where it is available for conversion into living things. We are living in an increasingly lush environment of plants and animals as a result of the CO2 increase. Our children will enjoy an Earth with far more plant and animal life as that with which we now are blessed. This is a wonderful and unexpected gift from the Industrial Revolution."
There is no hand waiving here. The authors carefully show the real data on global ground and atmosphere temps, the ocean levels and the effect of CO2 on plant life.
As CO2 levels rise plant life increases leading to more biodiversity until the CO2 in the atmosphere reaches an equilibrium.
Also, mankind has lived through much warmer periods in the past 3000 years with no evidence of globally reaching reductions in human or for that matter animal or plant life.
The science just doesn't support any reason to fear gloabl warming and a lot of respected scientists, including Frederick Seitz, the former president of the National Academy of Sciences, U.S.A. are willing to sign their names to such.