SAN DIEGO — In a rare move, the U.S. government has approved the importation of marijuana extracts from Canada for a clinical trial, highlighting a new avenue for American researchers who have long had trouble

Canada’s cannabis companies are experiencing a rush of investment that’s making even some participants paranoid. “You might argue our valuations are a little bit ahead of our skis,” said Paul Rosen, chief executive officer of

LOS ANGELES — Nearly 20 percent of marijuana products in California have failed tests for potency and purity since the state started requiring the checks on July 1, a failure rate some in the industry

Cannabis should be added to the North American Free Trade Agreement just like any other form of produce, says former Mexican President Vicente Fox. Fox, who sits on the board of Toronto-based medical marijuana producer

Ty and Tracy Camp have been together for 11 years, and married for seven, but they rarely mix their finances. Until May, she worked as an assistant vice president and financial center manager at Bank

SEATTLE — Washington’s penchant for getting high is trashing the place. Plastic “doob tubes” and small Mylar bags used to package pot are moldering in gutters, bleaching out in landfills and bobbing in waterways. Concentrated

The former head of the Wrigley gum empire is getting into the medical marijuana business. William Wrigley Jr., once the president and CEO of Wm. Wrigley Jr. Co., has been named chairman of the board

WEST JORDAN, Utah — Brian Stoll faced a dilemma as his wedding day approached. For more than a year, he had been smoking marijuana to treat severe back pain, but to remain in good standing

Police in Washington and Colorado appear to be closing more cases since the legalization of marijuana in both states, according to an analysis of FBI crime clearance data by researchers at Washington State University. To

PORTLAND — Green Thumb Industries had a business plan, expertise and plenty of ambition to grow its marijuana business. What the Chicago-based company didn’t have was access to enough capital to make it all happen.