Head of EPA denies carbon dioxide causes global warming – video

Scott Pruitt, the new head of the US Environmental Protection Agency, gave an interview on CNBC on Thursday during which he denied carbon dioxide was a primary contributor to global warming. Pruitt also said that there is 'tremendous disagreement' over the extent to which human activity such as CO₂ emissions are affecting the earth, despite widespread agreement in the scientific community

• EPA head Scott Pruitt denies that carbon dioxide causes global warming