In case you've missed it, big things are happening with the legal cannabis industry in North America.Within the U.S., Republican-leaning Oklahoma became the 30th state to have legalized medical cannabis since 1996, with nine of those states also approving the use of cannabis by adults. Mind you, all of this is happening while marijuana remains a Schedule I drug at the federal level.Meanwhile, to our north and south we've also seen the steady expansion of legal cannabis.