Chemicals, pesticides and intense concentrations are all things that may be in the liquid versions marijuana that are vaporized and inhaled.

The cannabis industry has been on a rough ride for the past few years. Sales are down in some of the nation's most prolific markets, including Washington and Colorado.

A large study from the University of Colorado found heavy cannabis use is linked to reduced brain activity. Lead researcher Joshua Gowin and neurosurgeon Paul Saphier discuss the impact on health.

The Flowery, a legal cannabis dispensary, has officially opened its doors on the Upper West Side this week, making it the ...

San Francisco police officials on Tuesday released body-camera videos showing the deadly police shooting of a suspect who hours earlier had shot and wounded a cannabis dispensary founder.

Dead plants, empty packaging for lights, fertilisers and other materials used to grow cannabis were present in the fly-tips ...

Body-camera video shows the deadly SFPD shooting that killed a man suspected of shooting and wounding the founder of the Vapor Room cannabis dispensary.