I've have already proceeded in post #532 referenced here.
http://www.debatepolitics.com/newreply.php?do=newreply&p=1060966048
Please explain why these scientists are wrong in their assessment that CO2 is causing the rise in temperature.
You may proceed.
The 1000 year period from 900 AD to 1900 AD, saw average global surface temperatures remain essentially constant. In fact to precise there was a tiny cooling of the earth of 0.05 degF, which is negligible.
How do you account for the almost 2 degF increase over the past 110 years since about 1900 AD, most of which occurred over the past 60 years?
Are you aware that prior to filtration of emission particulates from industry and coal power plants and cars, these particulates were released into the atmosphere and cause global dimming. These cooling effect was significant pre 1950 when the CO2 level was lower. Since then, these particulates have been reduced by industry and the dimming effect is small. Also the CO2 level has kept climbing.
The temperature trend reflects the dimming effect caused by these particulates.
In fact fires and volcanos also release reflective particulates into the atmosphere and can be accounts for as one off events. The huge Indonesian volcano eruption of the late 1990s is a good example.
You need to look at trend periods greater than a few years and isolated weather events in the USA which only makes up about 2% of the global surface area.
You also need to take into account the 12 year solar irradiance cycle and El Ninio and La Ninia events.
The warmest decades on record are
Warmest is 2000 to 2009
2nd warmest is 1990 to 1999
3rd warmest is 1980 to 1989
4th warmest is 1970 to 1979
5th warmest is 1960 to 1969
Any ideas as to what is driving this trend?
Who would you consult to find an answer to this question?