The marijuana industry is spending big on lobbying efforts this year, amidst growing concerns about the health risks associated with cannabis use and an ongoing feud with hemp producers. Federal lobbying disclosures show that five major marijuana vendors and trade associations spent over $2.2 million in the first two quarters of 2024, more than double their expenditures during the same period in 2023. Related: The Alarming Link Between Teen Marijuana Use And Psychosis This increase in lobbying comes as new studies link cannabis usage to heart disease, stroke, and mental health issues. A recent…