"I don't think I added any gratuitous personal insult, and unlike the new poster I CERTAINLY used no crude language.... I simply stated that Gbaikie is completely ignorant on the topic. (A fact demonstrated over and over again when I and others have pointed out his claims are demonstrably false and easily verified as false by a quick looking up of empirical data)."

In last 100 year global temperature has risen by about .6 C.
In last 50 years global temperature has risen by about .3 C. Much of the rise in latter part of last century in global temperature occurred in last 30 years, but in latest 10 year period, global temperatures have had little increase or on average remained flat.

As far as Global CO2, Mauna Loa Observatory, shows increase over the last 40 years of about 60 ppm in CO2.
http://www.esrl.noaa.gov/gmd/ccgg/trends/co2_data_mlo.html
And it's commonly said that from pre-industry period global CO2 levels have risen by about 100 ppm- from 280 to 380 ppm. The rise in global CO2 over the last 40 years do not accurately correspond to the more steeply rising CO2 emission from human sources. Global CO2 has risen over the last 40 year on average less than 20 ppm per decade, and it's reasonable to expect that in the coming couple of decades the average CO2 increase should continue to be around 20 ppm or less per decade.
According to Mauna Loa records the largest single year increase in global CO2 occurred in 1998 [3 ppm] which was also the warmest year in global temperature since modern temperature readings. But larger amounts of CO2 have been emitted yearly by human activity after 1998.

It is mostly accepted that global CO2 is not generally a factor in causing cooler periods [ice ages] to become warmer and that generally rising Global CO2 levels follow periods of time which are warming [interglacials]. And the Milankovitch cycles to play significant role global cooling and interglacials periods.

Natural climatic variability is thought by most people to explain at least part of the warming period over the last 100 years. Some scientists point to the last 50 or 30 years as being mostly caused by rising CO2 levels caused by human CO2 emission. Other greenhouse gases such as increasing levels Methane are also thought to play a significant role in increasing global temperatures. And another broad category in which humans are thought to be causing global warming is land use.

Though the media and people in general mostly associate CO2 emission with automobiles, more human emission of CO2 comes powerstations which provide electrical power to homes and industry- with coal power stations to blame for large part of human emission of the global CO2.

The only realistic solution to significantly lowering global CO2 is have more nuclear power station providing a higher percentage of the electrical power. And main factor which inhibits the US from building and using more nuclear power are governmental rules which were intentionally made to inhibit nuclear power development.

It is generally thought that a doubling of global CO2 will directly result a 1.2 C increase in global temperature. The CO2 component in our atmosphere is only a small component of the greenhouse affect and with water vapor being the major component. Increases in CO2 are thought to increase global temperature causing increasing amounts water vapor thereby amplify the resulting temperature increase far more significant than just the 1.2 C increase caused by CO2.

Considering that the preindustrial CO2 levels were 280 ppm and over 100 years global CO2 levels increased to 380 ppm this 100 ppm increase is about 1/3 of a doubling from the 280 level or should represent a global temperature 1/3 of 1.2 [.4 C]. And in addition the forcing affect from CO2 increase should have caused an increase in global water vapor which would have caused a larger increase than .4 C [such as doubling or tripling it].