Cannabis Cultivation Research Articles

Hotboxing the Polar Bear: The Energy and Climate Impacts of Indoor Marijuana Cultivation

Indoor marijuana cultivation is currently legal --at least a some level-- in all but eight states in the United States. This Article explores the energy and climate harms caused by the budding industry and recommends that state regulators and public utility companies work together to ensure that those harms are mitigated. Indoor marijuana cultivation has an energy demand that rivals data centers. With energy intensities around 2,000 Watts per minute, it consumes between 50 and 200 times more than an average office building and 66 times more than an average home. And, given the lucrative nature of the industry and the movement toward legalization, its energy demand is projected to grow exponentially over the next several years. The problem is that this growth is exacerbating an already strained energy delivery system and increasing greenhouse gas emissions due to a fossil-fuel reliant grid. While moving cultivation outdoors would be the most effective way of reducing these harms, outdoor grows are prohibited or limited in many states and by the federal government. A small number of states and localities, however, have recognized the energy-related harms and are working to mitigate them through their licensing frameworks. This Article discusses California’s new requirement to limit energy intensity or to require carbon offset purchases, Massachusetts' and Illinois’ mandates for lighting efficiency, and Boulder, Colorado’s renewable energy requirements and carbon offset funds. While these regulatory requirements can result in significant out-of-pocket costs for indoor growers, this Article recommends all states that legalize indoor cultivation implement policies to address harms caused by overconsumption of fossil-fuel based energy. Furthermore, public utility companies can play a role in helping offset compliance costs and incentivizing best practices through push and pull policies that can provide incentives for energy-efficient technology, grants for studies to fully understand the industry’s energy demand and for individualized funding of energy efficient technology, and taxes or fees for overconsumption beyond a set baseline.

Photosynthetic Performance and Potency of <i>Cannabis sativa</i> L. Grown under LED and HPS Illumination

Light-emitting diodes (LEDs) can be used as an energy efficient alternative to high-pressure sodium (HPS), which have historically been the standard for supplemental lighting in cannabis cultivation. However, there is a lack of scientific understanding in the cannabis industry regarding plant physiology, which has resulted in the adoption of cannabis cultivation methods based on hearsay rather than scientific research. The goals of this study were to 1) compare LED lighting options that are commonly used in the cannabis industry and 2) compare the top performing LED light with an industry standard HPS light. Specifically, three LED lights were compared (California Light Works ((SolarSystem 1100), BIOS Lighting (Icarus Gi2), and Fluence Bioengineering (now Fluence by Osram) (SPYDR xPLUS)), based on light distribution, leaf temperature, and photosynthetic performance indices. The LED versus HPS comparison was based on light response curves measured at photosynthetic photon flux densities (PPFD) of (0, 100, 200, 300, 400, 500, 750, 1000, 1250, 1500, 1750 and 2000 μmol∙m−2∙s−1), carbon assimilation rates (A) μmol CO2 m−2∙s−1 using a LiCor-6800 and resulting cannabinoid potency (THCA). The SPYDR xPLUS-Fluence by Osram had the highest performing LED light used in the LED comparison. At the suggested distance from bulb to canopy in the HPS versus LED comparison (6 inches for LEDs and 4 ft for HPS), carbon assimilation rates displayed a 142% percent increase in plants grown under LED vs. HPS with average photon flux densities of 795 and 298 μmol∙m−2∙s−1 for LED and HPS, respectively. All cultivars of Cannabis sativa L. showed increased cannabinoid potency when grown under LED illumination. The results of this study provide further insight regarding the selection of supplemental light to achieve maximum productivity of Cannabis sativa L.

Medical Cannabis in Lebanon: History & Therapeutic, Ethical, and Social Challenges. A Narrative Review

Legalizing cannabis for both medical and recreational purposes is currently a worldwide trend. Lebanon, a Middle Eastern country, recently became the first Arabic state to legalize the cultivation of medical and industrial cannabis amid a huge economic crisis and the COVID 19 pandemic. However, the state of the art regarding the Lebanese cannabis is still poorly defined. Hence, our aim is to highlight medical and social concerns, and to clearly define the ethical framework for medical cannabis prescription and usage. Studies showed cannabis therapeutic potentials in treating numerous diseases such as epilepsy (high level of evidence), multiple sclerosis (moderate level of evidence), PTSD (low level of evidence), as well as in alleviating symptoms related to other conditions, for instance weight loss in HIV patients and chemotherapy induced nausea and vomiting (high level of evidence in both cases). Nonetheless, legalizing a drug known worldwide for its abuse potential could hinder several ethical principles. Whenever prescribing medical cannabis, the physician should respect patient’s autonomy, assess the risk benefit ratio of his actions, and act by justice. Moreover, authorizing cannabis usage for medical purposes could give rise to stigmatization, and further increase the burden on a society already struggling with the issues of self-medication, unemployment, and drugs diversion phenomena. By legalizing medical cannabis, Lebanon has entered a new chapter that warrants assessments, regulations, and readiness in order to insure a safe and successful experience.

Cannabis in Kenya

In 2018, Kenneth Okoth, a member of Parliament for the Kibra Constituency in Kenya, introduced a Marijuana Control Bill in parliament. Okoth’s bill sought to legalise the growth and use of cannabis, establish a system for the registration and licensing of cannabis growers and users, promote the use of cannabis for medicinal purposes, and increase public awareness of cannabis. This last point is critical in that Okoth understood that public knowledge of cannabis was shallow at the very moment when the country was debating prohibition, and he considered public awareness a critical component of this debate. Undoubtedly, the shallowness stems from a dearth of scholarship on cannabis in Kenya and East Africa. This study attempts to close the gap on the historiography of cannabis in Kenya. It historicises cannabis before the country’s independence in 1963, revealing that the British colonial government sanctioned cannabis for medicinal use but prohibited it for recreational purposes among Africans. The essay grounds the history of cannabis in Kenya within a longer history of making and re-making citizens and contributes to a more complex understanding of how bodies, goods, and ideas move across time and space.

The Role Of Artificial Impoundments In Improving Agricultural Production In The Semi-Arid Regions Of Northern Morocco

At the end of the last century, the Rif mountains of Morocco have experienced significant changes in the level of agricultural activity, especially it concerns the increase in cannabis cultivation, which is characterized by high water requirements. For that reason, a number of Artificial Impoundments (AIs) have been constructed in the Tangier-Tetouan-Al Hoceima (TTA) region, where by August 2017 there were more than 1400 of such structures. This requires to a study the efficiency and potential negative effects of such noticeable development. It has been shown that these hydraulic structures have provided additional positive value to the agricultural sector, especially to the proscribed industry of cannabis cultivation. Regarding other effects, the present study has found that their impact on the hydraulic and hydrographic aspects at the moment is very limited and that the only major constraint for their application is related to the issue of security, which arises from the fragile geological structure that is observed in the majority of the region.

Cannabis Sativa L.: a comprehensive review on the analytical methodologies for cannabinoids and terpenes characterization

The global Cannabis Sativa market, including essential oils, foods, personal-care products, and medical formulations has gained much attention over the last years due to the favorable regulatory framework. Undoubtedly, the enormous interest about cannabis cultivation mainly derives from the well-known pharmacological properties of cannabinoids and terpenes biosynthesized by the plants. In this review, the most recently used analytical methodologies for detecting both cannabinoids and terpenes are described. Well-established and innovative extraction protocols, and chromatographic separations, such as GC and HPLC, are reviewed highlighting their respective advantages and drawbacks. Lastly, GC × GC techniques are also reported for accurate identification and quantification of terpenes in complex cannabis matrices.

Legalizing Medical Cannabis in Lebanon: the Complex Interface Between Medicine, Law, Ethics, and Economics.

In April 2020, after decades of discussions and controversy, the Lebanese parliament voted a law legalizing the cultivation, production, and sale of cannabis for medicinal purposes. Although the law leaves several unanswered questions and awaits implementation, the symbolic nature of this step in recognizing a positive role of cannabis in the local economy is significant on a regional level. The Arab world has traditionally been conservative when it comes to all drugs-related policies. Cannabis is largely demonized with heavy sentences served to anyone suspected of using selling, let alone planting cannabis. Despite a few countries considered producers and consumers of substances, governing authorities have remained immune to the liberalization trend encountered in western countries. The social experiment taking place in Lebanon is fraught with risks, given the unstable political situation and chronic economic challenges. The reactions to the law have been mixed with several scientific bodies such as the Lebanese Psychiatric Society criticizing the absence of proper consultation of stakeholders. The absence of consistency in enforcing established drugs policies or seriously debating the decriminalization of cannabis use raises concerns over the establishment of a two-tier approach toward drugs, driven solely by economic imperatives.

In vivo and in vitro anti-inflammatory activity evaluation of Lebanese Cannabis sativa L. ssp. indica (Lam.)

Cannabis sativa L. is an aromatic annual herb belonging to the family Cannabaceae and it is widely distributed worldwide. Cultivation, selling, and consumption of cannabis and cannabis related products, regardless of its use, was prohibited in Lebanon until April 22, 2020. Nevertheless, cannabis oil has been traditionally used unlawfully for many years in Lebanon to treat diseases such as arthritis, diabetes, cancer and few neurological disorders. The present study aims to evaluate the phytochemical and anti-inflammatory properties of a cannabis oil preparation that is analogous to the illegally used cannabis oil in Lebanon. Dried Cannabis flowers were extracted with ethanol without any purification procedures to simulate the extracts sold by underground dealers in Lebanon. GC/MS was performed to identify chemical components of the cannabis oil extract (COE). In vivo anti-inflammatory effect of COE was evaluated by using carageenan- and formalin-induced paw edema rat models. TNF-α production were determined by using LPS-activated rat monocytes. Anti-inflammatory markers were quantified using Western blot. Chemical analysis of COE revealed that cannabidiol (CBD; 59.1%) and tetrahydrocannabinol (THC; 20.2%) were found to be the most abundant cannabinoids.Various monoterpenes (α-Pinene, Camphene, β-Myrecene and D-Limonene) and sesquiterpenes (β-Caryophyllene, α-Bergamotene, α-Humelene, Humulene epoxide II, and Caryophyllene oxide) were identified in the extract. Results showed that COE markedly suppressed the release of TNF-α in LPS-stimulated rat monocytes. Western blot analysis revealed that COE significantly inhibited LPS-induced COX-2 and i-NOS protein expressions and blocked the phosphorylation of MAPKs, specifically that of extracellular signal-regulated kinase (ERK), c-Jun NH2-terminal kinase (JNK) and p38 MAPK. COE displayed a significant inhibition of paw edema in both rat models. Histopathological examination revealed that COE reduced inflammation and edema in chronic paw edema model. The current findings demonstrate that COE possesses remarkable in vivo and in vitro anti-inflammatory activities which support the traditional use of the Lebanese cannabis oil extract in the treatment of various inflammatory diseases including arthritis.

Water Availability for Cannabis in Northern California: Intersections of Climate, Policy, and Public Discourse

Availability of water for irrigated crops is driven by climate and policy, as moderated by public priorities and opinions. We explore how climate and water policy interact to influence water availability for cannabis (Cannabis sativa), a newly regulated crop in California, as well as how public discourse frames these interactions. Grower access to surface water covaries with precipitation frequency and oscillates consistently in an energetic 11–17 year wet-dry cycle. Assessing contemporary cannabis water policies against historic streamflow data showed that legal surface water access was most reliable for cannabis growers with small water rights (<600 m3) and limited during relatively dry years. Climate variability either facilitates or limits water access in cycles of 10–15 years—rendering cultivators with larger water rights vulnerable to periods of drought. However, news media coverage excludes growers’ perspectives and rarely mentions climate and weather, while public debate over growers’ irrigation water use presumes illegal diversion. This complicates efforts to improve growers’ legal water access, which are further challenged by climate. To promote a socially, politically, and environmentally viable cannabis industry, water policy should better represent growers’ voices and explicitly address stakeholder controversies as it adapts to this new and legal agricultural water user.

Cannabis plantations as an aspect of population survival and as a public policy and security issue in the northeast region of Brazil

Based on historical and structural data, this article aims to discuss the cultivation of cannabis as a social and political issue in Brazil. The objective was to analyze the genesis of the issue of illegal plantations, its evolution, the governmental response and its consequences for public security and agricultural policies in the São Francisco Valley region, in the Northeast of Brazil. Qualitative methodologies were used with emphasis on the descriptive analysis of the phenomenon. The result is that the state steps that affected the environment, the Brazilian drug policy, the inefficient agricultural policy for the semi-arid region and the plantation eradication measures are directly and indirectly related to the continuation of the plantations as relevant economic and criminal activities.

Two years after legalization: Implementing the Cannabis Cultivation Policy in southern coastal California

Two years after legalization: Implementing the Cannabis Cultivation Policy in southern coastal California

Digging Deeper: Examining DEA Proposed New Rule to Enhance Cultivation of Marijuana for Research Exposes Conflict of Interest for the DEA

Digging Deeper: Examining DEA Proposed New Rule to Enhance Cultivation of Marijuana for Research Exposes Conflict of Interest for the DEA

Societal issues and policy implications related to the use of cannabinoids, cannabis, and cannabis-based medicines for pain management.

Societal issues and policy implications related to the use of cannabinoids, cannabis, and cannabis-based medicines for pain management.

Potential impacts of plastic from cannabis cultivation on fish and wildlife resources

Potential impacts of plastic from cannabis cultivation on fish and wildlife resources

A review of the potential impacts of artificial lights on fish and wildlife and how this may apply to cannabis cultivation

A review of the potential impacts of artificial lights on fish and wildlife and how this may apply to cannabis cultivation

Pesticides in California: their potential impacts on wildlife resources and their use in permitted cannabis cultivation

Pesticides in California: their potential impacts on wildlife resources and their use in permitted cannabis cultivation

Anthropogenic noise: potential influences on wildlife and applications to cannabis cultivation

Anthropogenic noise: potential influences on wildlife and applications to cannabis cultivation

Hidden and uninterested populations: Methodological insights and unresolved issues from the study of Cannabis Social Clubs

Cannabis Social Clubs are typically non-profit associations established by adult users of cannabis, which produce and distribute cannabis among their members. Such associations can be found in several European countries and beyond, but with exception of Uruguay, they are illegal or otherwise operate at the margins of domestic drug control legislation, at risk for law enforcement detection. We have conducted several individual and collaborative studies on Cannabis Social Clubs and their key actors (e.g. Cannabis Social Clubs leaders, users affiliated as members, cannabis growers, other stakeholders), primarily drawing on qualitative methods (e.g. ethnographic fieldwork, interviews, qualitative media analyses) but also employing a quantitative approach (e.g. online surveys). In this article, we reflect on the research experiences of the authors in studying Cannabis Social Clubs, providing insights for future research in this area and within criminology and socio-legal studies. In particular, we aim to examine our approaches with regard to the recruitment of participants and research design, identifying good practices, but also discussing what the less successful strategies were. We draw on research conducted since 2014 in different countries, with different legal frameworks, which provides an opportunity for a comparative and more in-depth critical consideration of what might be helpful ways of reaching and researching hard-to-reach populations.

Questioning the New Drug Enforcement Administration Proposed Rule to Facilitate the Cultivation of Cannabis for Research Purposes.

Questioning the New Drug Enforcement Administration Proposed Rule to Facilitate the Cultivation of Cannabis for Research Purposes.

“Tropical Stupor”: Drug Regulation, Public Surveys, and State-Building in Brazil (1930–1950)

This article shows how drugs were defined as an object of state knowledge in Brazil during the first half of the twentieth century. Focusing on the work of the National Commission of Narcotics Control between the 1930s and the 1950s, I highlight two main dimensions of this process. First, in relation to the effort to regulate the legal drug market and to control medico-scientific professions, the commission designed a set of statistical and accounting procedures, as well as a process of administrative control and inspections that led to an accumulation of data on drug use and medical practices. Second, in relation to the effort to eradicate cannabis cultivation and consumption in Brazil, a series of surveys and inspections were conducted to identify the origin of cannabis usage, locating it in the customs of the so-called backward populations of the north/northeast regions of Brazil, especially in relation to former slave culture. This process produced a considerable amount of ethnographical and statistical data on cannabis, creating both a public-health and nation-building issue in Brazil.