In regards to Michael Jankowski's comment (# 11), the Fu et al. (2004, Nature) article showed that the satellite record of tropospheric temperature trends, based on the Microwave Sounding Unit channel 2, is contaminated by stratospheric cooling on the order of -0.08 K / decade. (realclimate.org)
How can the atmospheric sciences community facilitate access to ozone metrics necessary for quantifying the impact of tropospheric ozone on human health, crop and ecosystem productivity and climate? (elementascience.org)
In terms of atmospheric chemistry, a strong consensus was reached for the first time that science could predict the changes in tropospheric ozone in response to scenarios for CH4 and the indirect greenhouse gases (CO, NOx, VOC) and that a quantitative GWP for CO could be reported. (ipcc.ch)