A new study shows that the establishment of adult-use cannabis programs in Washington and Oregon has had an impact on the number of illegal grows on federal lands. But the decline in the number differs in each state, for some interesting reasons that speak to how regulatory agencies should take a broader view of cannabis use as a way to better achieve their stated goals.
As Marijuana Moment reports, Central European University in Hungary (the safety school for Czechs everywhere) had researchers try to determine if regulated programs that provided access to cannabis had a positive impact on the environment. They opted to look at grows on national forest lands in Washington and Oregon, two states that made Mom proud by making the dean's listâif the dean were the office of National Drug Control Policy, and the list was the âMarijuana Seven,â AKA the top seven states where people illegally grow cannabis. (Sniffâso proud of all y'all.)
Between 2004 and 2017, 245 illegal cannabis grow sites were discovered on forest lands. The largest had more than 91,000 plants and was discovered in the Wallowa-Whitman National Forest, which extends from Oregon into Idaho.
Washington legalized cannabis in 2014, and Oregon followed suit in 2015. Per Marijuana Moment, "Officials discovered an average of 9.2 sites in Washington from 2004 to 2012, and 1.6 per year from 2013 to 2017 after legal cannabis was approved. In Oregon, the average number of sites discovered between 2004 to 2014 was 13 per year, and that dropped to 3.67 sites per year from 2015 to 2017."
It gets interesting at this pointâresearchers don't necessarily attribute the reduction in the grows to legalization in Washington, per se, but rather how the state has implemented its recreational cannabis program. They deem these "state specific characteristics,â and they start with the cannabis tax rates paid by both states.
The tax rate charged by Oregon is 17 percent, while Washington's is 37 percent. Per the study's authors, "This difference in taxation may incentivize some consumers to return to the illicit market where the cost of cannabis may be cheaper, thus negating some of the beneficial effects legalization may be able to provide with regards to illegal production, as is seen in Oregon." Marijuana Moment makes a great point not covered by the studyâthat Oregon allows home cultivation, while Washington does not, which could be contributing factors as well.
The Forest Service has a different hot take on this, stating that they they believe the reduction of illegal grows is more about the other greenâmoney. âMany state and local cooperators are reducing or even eliminating the resources that typically assist the Forest Service with counter marijuana cultivation operations,â they told researchers. âThese resources are now often committed to addressing regulatory concerns or crimes related to âlegalâ growing activities on private lands.â
Researchers surmised that legalization did have an impact, writing, "The results of this study suggest that for areas impacted by illegal cultivation of cannabis on public and protected lands, legalization may assist in decreasing the proliferation of this activity, and thereby serve within a broader ecological conservation strategy. However, legalization policies must actively prioritize incentives and measures that discourage the continuation of illicit production for these beneficial effects to occur... Legalization of recreational cannabis is found to contribute to a decline in illegal marijuana cultivation in Oregonian national forests,â and that the policy change âhas been instrumental in declining illegal marijuana production.â