Graph Showing that Rising CO2 Levels Correlate with Higher Global Temperatures.
The Black Line Shows the Correlated Increase in CO2 Levels. The Graph Provides Evidence that Rising CO2 Levels Cause Global Warming.

Graph showing that rising CO2 levels correlate with higher global temperatures.
National Oceanic and Atmospheric Administration, "Global Climate Change Indicators," (accessed Apr. 13, 2010)