I am a skeptic and Dennis Hartman's discussion made me trust him as a scientist with integrity. I believe CO2 has some impact but I am not sure how sensitive the climate is to CO2 nor how catastrophic that sensitivty may be.. To evaluate climate sensitivity we must present an honest accounting of natural climate variability. I lost trust in all climate scientists who cut corners and simply blame everything on CO2 warming when natural variability provided and equally plausible explanation. The skeptics I know objectively evaluate climate science hypotheses and like myself have more trust and give more weight to those scientists who carefully evaluate contributions from natural climate dynamics. Dennis Hartman has gained my trust. If there were more who did not cut corners there would be a more conducive atmosphere for sincere climate discussions.