This document discusses climate change and summarizes comments from climate change advocates that call into question their confidence in the science of climate change. It notes that former US Senator Timothy Wirth said "we have got to ride the global warming issue" even if the theory is wrong, as it would advance economic and environmental policy goals. It also cites Maurice Strong saying the only way to save the world may be for industrial civilization to collapse, and Richard Benedick saying a climate treaty must be implemented even without scientific evidence for enhanced greenhouse effects.