A dab of cannabis.
November 29, 2022

Washington state’s pioneering move to legalize recreational cannabis has resulted not only in widely available leaf versions of the drug, but also high-potency “dabs” and vapes whose levels of THC, the psychoactive part of cannabis, are well abo

November 29, 2022

UW researchers produced a document to help legislators understand the downsides of manufactured, highly potent concentrates.

May 10, 2019

Researchers seek to isolate cannabis from concurrent use of alcohol, tobacco, and illicit drugs.

May 2, 2018

"In 1990, as a Ph.D. student at the University of Washington, I and a colleague studied 68 infants whose moms smoked pot while nursing. Those infants, we found, had significant delays in motor development."

April 13, 2018

Two recent scientific studies show that opioid prescriptions are relatively lower in states friendly to medical marijuana. They suggest that pot can be a useful tool in America's opioid crisis.

[8/18: Correction made to Dr. Bearman's interpretation of Dr. Donald Abrams' work.]

A year after recreational marijuana use was legalized in Washington state, very little money from taxes—which total over $60 million—has been put toward education, prevention and treatment, despite the fact that more young people seek help for m

Roger Roffman, a UW professor emeritus of social work and former pot smoker, was a sponsor of Washington state's 2012 marijuana-legalization initiaitive.

Now that smoking pot is legal in Washington, will more people take part? It's a question Seattle researchers are already planning to answer with studies of sewage and other public information. 

Drug-caused deaths and heroin use among young adults increased in 2013, according to the annual King County Drug Trends report


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