The acting head of the Drug Enforcement Administration claimed that smoking marijuana has “never been shown to be safe or effective as a medicine.” That’s false: though information is limited on the topic, several studies have found smoked marijuana has medical benefits and mostly mild side effects.
Stories by Dave Levitan
Former Science Writer, FactCheck.org
Smith Misfires on Climate Science
Clinton Off on Late-Term Abortions
Carson Rewrites Laws of Thermodynamics
Doubling Down on Falsehoods
Palin Off on Glaciers and Global Warming
Santorum’s Climate Consensus Claims
Fiorina’s Fuzzy Vaccine Claims
The Bear Facts
Mailbag: Volcanic Versus Human SO2 Emissions
Readers sent us letters regarding the contributions of human-caused and volcanic emissions of sulfur dioxide, or SO2.