Science9 Science Stories You Can't Miss: The Dirty Weed EditionMost states with medical marijuana don't have safety testing requirements. That and other great science stories from BuzzFeed and around the web.By by Virginia HughesBuzzFeed News Science EditorPosted on December 19, 2015, 3:06 pmTwitterFacebookLink 1. Medical Marijuana Could Have E. Coli And Mold In It, But Most States Wouldn’t Know 2. The Paris Climate Agreement Would Be A Great First Step If This Were 1995 3. Can You Guess Which Of These Companies Are The Most Climate Friendly? 4. These Sublime Ads From The 50s And 60s Introduced The World To Electronics 5. The Final Battle In The U.S.-Russia Relationship Is In Space 6. Resistance to a Last-Ditch Antibiotic: Invisible Spread 7. Berkeley Astronomer Gets $42,000 In Salary After Resigning For Sexual Harassment 8. The Science Myths That Will Not Die 9. Why Human Genetics Research Is Full Of Costly Mistakes