A Project of The Annenberg Public Policy Center

FactChecking Science in 2016

We look back at some of the more questionable science-related claims from 2016 on topics such as climate change, Zika, GMOs, marijuana and the human mind.

Unpacking Pot’s Impact in Colorado

Libertarian presidential candidate Gary Johnson said “marijuana-related” traffic deaths, hospital visits and school suspensions in Colorado have “not significantly” increased since the state legalized the drug. That’s inaccurate.

Gary Johnson’s False Marijuana Claim

Libertarian presidential nominee Gary Johnson claimed that “no politicians outside of Bernie Sanders and myself support legalizing marijuana” at the “congressional, gubernatorial, senatorial level.” He’s wrong.