The above graph comes from the IPCC via Australian Senator Steve Fielding" website.
The black line is carbon dioxide and the red line is global surface temperature. As can be seen the hottest year is 1999 and from then there has been a steady decline in the surface temperature of the earth.
The CO2 readings were taken at the Mauna Loa Observatory (MLO), an atmospheric baseline station on Mauna Loa volcano, on the big island of Hawwaii.
The surface temperature readings come from the Hadley Centre and the Climate Research Unit of the University of East Anglia. Both of these organisations are at the centre of the Climategate scandal where a whistleblower released emails detailing among other matters, how:
- Climate data was manipulated or not used unless it confirmed human caused global warming.
- To stop peer review papers that didn't agree with human caused global warming.
- To discredit scientists who didn't agree with their views.
- To hide the fact that global warming stopped in 1999.