Science

In the first study of its kind, scientists have analyzed long-term marijuana use in teens, comparing IQ changes in twin siblings who either used or abstained from marijuana for 10 years.

Hemp Plants. Image: Jungbim via Wikimedia Commons
 
Canadian researchers unraveled the genetic structure of 81 different marijuana and 43 hemp samples, in an attempt to test long-held assumptions about cannabis.

A package of compressed yeast, produced in Finland. Image: Hellahulla via Wikimedia Commons
 
Why grow marijuana when you can brew it?

Sarah Stuive, biological control consultant, checks for bugs at Bedrocan Canada, a medical marijuana facility, in Toronto on Monday, August 17, 2015. Image: THE CANADIAN PRESS/Darren Calabrese
Alexandra Posadzki ~ The Canadian Press ~
 
TORONTO – When Sarah Stuive first got into the natural pest control business – which uses predatory insects, or “good bugs,” to weed out pests – she never expected to be working with cannabis plants.

A U.S. government medical marijuana crop at the University of Mississippi, Oxford. Image via Wikimedia Commons
 
A side effect of a federal drug law has left legal pot farmers without any approved pesticides—and as a result, many have turned to harmful chemicals to protect their crops.

Hemp field

Tom Weber ~ Minnesota Public Radio ~

A University of Minnesota plant biologist has identified a key gene that distinguishes hemp from marijuana.

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