The goal of Skeptical Science is to explain what peer reviewed science has to say about global warming and is maintained by John Cook, the Climate Communication Fellow for the Global Change Institute at the University of Queensland.
Often, the reason for disbelieving in man-made global warming seem to be political rather than scientific, however, what is causing global warming is a purely scientific question. Skeptical Science removes the politics from the debate by concentrating solely on the science.
Consequently, the science presented on Skeptical Science is taken directly from the peer reviewed scientific literature. To those seeking to refute the science presented, one needs to address the peer reviewed papers where the science comes from.