it is too bad that people like AlexWA can't tell the difference between pollution and CO2.
Ian I fully understand that Co2 is a natural gas that we all emit every time we breath as well as plants. I also fully understand that other gases like methane are also natural gasses emitted by plants and various ecosystems that all goes into the atmosphere. The connection is that the Earth can balance the natural emission of various gasses such as Co2 and methane, it has for billions of years, however, when we as human beings create addition sources of these gasses and emissions and overwhelm and clog our atmosphere by allowing millions upon millions of extra tons of these gases to interact with our atmosphere it becomes pollution. From that pollution of excess gas it makes it much more difficult for these gases to escape, which then can cause a warming trend, i.e. a greenhouse effect.
I am not blind to the fact that C02 and other natural gasses can not be eliminated since they are natural and released from the very plants and ecosystems that sustain life on this planet. But i am not blind at all to the fact that we pump millions of tons of excess gasses and pollutants into our atmosphere every single day. To deny that this has a negative affect on our planet and can cause heat to be trapped between us and the atmosphere is irresponsible in my opinion.
The problem with your contention is it has never been proven in a lab experiment and natural CO2 production accounts for 95% of the total CO2 budget of the planet. Mankind contributes a vanishingly small amount of CO2.
Furthermore it is proven that the higher the CO2 levels the better plants grow to use the CO2 to grow etc. etc. etc. There has never yet been a single bit of empirical data that shows CO2 to be a bad thing.
Everything you are concerned about is generated ONLY in computer models. The real world has shown those models to be severly lacking and they have been shown repeatedly to have no basis in relity.
Quite on the contrary, the absorption spectra in infrared of CO2 has been public knowledge for a long time.
UV-VIS Absorption Spectra of Gaseous Molecules and Radicals: Catalogue Spectra
And the complexity of the effects of increasing the amount of GHGs have also been known for a long time.
http://www-pord.ucsd.edu/~ltalley/esys10/text_chapters/The_Earth_System_Chapter_3.pdf
Now our contribution to the increase in CO2 in the atmosphere is not 5%, but 40%. That represents an increase in energy of almost 1.8 watts/meter^2.
Current Greenhouse Gas Concentrations
The increase in CH4 has been 250%, which represents 0.50 W/m^2.
Current Greenhouse Gas Concentrations
The increase in extreme weather events of the past three years are not computer generated models.
Climate Change: Insurers Confirm Growing Risks, Costs-Insurance Networking News
“From our industry’s perspective, the footprints of climate change are around us and the trend of increasing damage to property and threat to lives is clear,” said Franklin Nutter, president of the Reinsurance Association of America. “We need a national policy related to climate and weather.”
Property and casualty insurers in the United States experienced an estimated $44 billion in losses last year when hurricanes, droughts, tornadoes and other natural disasters were more severe, longer, more frequent and less predictable than in the past.
According to Swiss Re, the average weather-related insurance industry loss in the U.S. was about $3 billion a year in the 1980s compared to approximately $20 billion annually by the end of the past decade.
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What has been shown to have no basis in reality is the continued insistance that nothing is changing, or, if it is, it is all natural. Both lies have been shown repeatedly to be just that. From alpine glaciers to Arctic Sea Ice, we are seeing rapid change due to a warming world. A change that is having measureable affects.
[ame=http://www.youtube.com/watch?v=RtRvcXUIyZg]Weather and Climate Summit - Day 5, Jennifer Francis - YouTube[/ame]