The U.S. legal cannabis industry is on track to hit $25 billion by 2025, according to the latest forecast from cannabis analytics firm New Frontier Data.

A quiz about what science knows — and doesn’t know — about cannabis.

Politics isn't always red or blue. Lately, it has been green.

It’s not just companies from the liberal enclaves of California and Vermont who are partaking in 4/20 marketing campaigns. It’s also big, mainstream brands, such as Pepsi, Chipotle, Burger King and Denny’s, all of whom have alluded to 4/20 on social media in previous years.

Delectable pastries and popular candies infused with marijuana are enormously popular wherever they are legal.

Free “tipsy tow” services will be available Friday during California’s first 4/20 cannabis celebration with legalized recreational marijuana, according to AAA.

Several potential rival presidential candidates are teaming up on legislation to end the federal war on marijuana.