CO2 vs Change in Pacific Northwest Temperature

Average (yellow bar) and 10th – 90th percentile range of projected changes in temperature for the Pacific Northwest relative to early-20th century, related to CO2 values. See footnote for details.

Click on and drag the blue ball to investigate the effect of elevated atmospheric CO2.

CO2 value:  ppm

Footnote: This analysis used the outputs of 20 global climate models, subsetted over the Pacific Northwest as in Mote and Salathe (2009). For each model, the 200-year simulation from 1900 to 2100 was regressed against the logarithm of CO2 (approximating the radiative forcing) and these regression values were then used to relate each CO2 value on the slider to a given temperature value for each model. The average value and 10th and 90th percentiles were calculated.