Correlation Between Marijuana Legalization and Increased DUIs

Marijuana and the use of Cannabis have long been touted to offer certain health benefits for the immunocompromised and chronically ill, except it is still illegal in most of the world. Countries like the Netherlands, Jamaica, Costa Rica, Spain, and a few others have legalized the sale of recreational marijuana among rising public popularity. The main psychoactive component of cannabis is THC which produces the high sensation and can be inhaled or ingested. Users exposed to THC experience relaxing effects, including heightened sensory perception, euphoria, and an altered perception of time. THC can also be directly ingested, delaying the effects by more than 30 minutes. The effects of cannabis usually last up to 3 hours, although evidence of THC can remain in the body for days after initial use. 

Each person reacts differently to THC ingestion, but increased popularity and legalization around the world have contributed to concerns about its impact on driver safety. In the United States, more than 1.5 million people are arrested for driving under the influence each year. Studies in Colorado suggest an increase of marijuana-related DUIs by more than 48% last year, with an increasing trend over the last five years. The rising frequency DUIs is concerning because a large percentage may correlate with areas that have legalized marijuana. In recent years, the same study also identified increased frequency in marijuana-impaired drivers’ roles in deadly car accidents. 

Assessing impairment from a marijuana user is much harder than in individuals under the influence of alcohol. Despite recent increases in legalization and recreational use of marijuana, law enforcement has yet to identify an accurate and reliable test to determine a driver’s level of intoxication. The equivalent test for alcohol impairment is the breathalyzer test used to determine the blood alcohol content as it corresponds to legal limits. There are blood tests used for THC identification, but they do not provide an accurate assessment of an individual’s level of impairment because of the chemical’s varying effects with each person. New developments in law enforcement have focussed on creating behavioral tests to assess individual impairment, similar to methods used to confirm alcohol intoxication. 

Developing accurate tests is vital for driver’s safety and the ability of law enforcement to assess impaired individuals. Regular marijuana users have produced blood profiles that indicate stores of THC can remain detectable in the blood for 30 days in some cases. These THC levels are often higher than local DUI limits, even though the individual has not recently ingested marijuana. 

Factors impacting DUI statistics include regional THC blood limits, driving laws, past offenses, and law enforcement discretion. The consequences of driving under the influence are also different depending on the region but can implicate an individual up to a year in jail. 

Understanding the use of marijuana as it impacts drivers’ abilities and law enforcement methods for impairment detection are quickly becoming an increasingly vital area of research. Investments will continue to increase as recreational use becomes legalized in other parts of the world.

Drastic Changes to India’s Air Pollution During the Pandemic

While the world faced unprecedented lockdowns amidst the coronavirus outbreak in early 2020, many environmental scientists observed significant beneficial impacts the lack of human activities caused on Earth’s natural systems. Urban areas were inhabited by local wildlife species that had not been seen in decades, water resources began to purify and significantly reduce air pollution. India’s large cities are well known for their environmental pollution, and the lockdowns created the opportunity for numerous improvements for India’s atmospheric status. 

Air pollution is rampant across India because of its enormous population size and concentrated city infrastructure. Air pollution results from too many greenhouse gases like aerosols, nitrogen, and carbon dioxide collecting in the atmosphere. These gases lead to increased temperatures as they capture and hold solar radiation. They also increase cloud retention of particulate matter that can be detrimental to surface resources and human health. 

The World Health Organization’s study of global air pollution indicates it poses a significant health risk, responsible for killing 7 million people a year and impacting many more. The COVID-19 outbreak is only responsible for 2.5 million deaths per year to place that statistic into context. In India, contributing sources of atmospheric pollution include vehicle byproducts, industrial power generation, material kilns, and suspended particulate dust contaminants. A report by IQAir identified the top 10 most polluted cities globally, and 9 of them were in India. 

India’s urban areas previously blanketed in smog and pollution experienced substantial reductions, extending views to the horizon in many places. Indians in Punjab could see the Himalayas more than 100 miles away! India’s Central Pollution Control Board found more than 85 cities across India with significantly reduced air pollution in only the first week of the pandemic. The report also measured New Delhi, the capital of India, with a more than a 44% reduction in only the first day of restrictions! It is estimated that more than 90 percent of road and transportation activities across the country were halted at the start of the pandemic.

Restrictions were lifted as the early pandemic lockdowns concluded, and life in India seemed to go back to the levels of pollution it created before. This is incredibly worrying because high levels of pollution in the air can highly damage a person’s health. If pollution levels do not rescind, ailments like headaches, respiratory issues, and virus susceptibility will become rampant. Toxic pollution also increases susceptibility to contracting COVID-19 because of its involvement in damaging respiratory cells, severely impacting at-risk demographics. 
Parents are forced to keep children home from school many days throughout the year because the overlying smog is too dangerous to breathe in. This saw many schools respond with waning attendance rates even after restrictions were lifted.

Navy’s Accidental Water Contamination Affects Over 400k Hawai’i Residents

Recent water quality tests at containment facilities near Pearl Harbor on Oahu in late November uncovered extreme levels of petroleum fuel contamination, forcing the shutdown of a major well for island residents. The petroleum-contaminated water was recorded with more than 350 times the safe level of possible hydrocarbon contaminants forcing the shutdown on December 3rd.

Hundreds of military families in the impacted area were affected with reported cases of mouth and body sores, pet sickness, stomach issues, and other attributable illnesses. Preliminary concerns were first warranted when residents reported their water smelling and tasting like gasoline, corroborating the recent illnesses. This shocking public health threat has forced the relocation of at least 3,000 Pearl Harbor-Hickam military families and posed risks to several day cares, schools, and hundreds of businesses. 

Investigations into the contamination suggested wells were originally contaminated after jet fuel spilled into access tunnels on November 20th. The spill was immediately cleaned and responded to, but not before contaminants could leach through to underground water wells. 

Residents are rightly upset due to the Navy's knowledge about the spill, potential health threats, and their inability to take necessary preventative steps until a week after the initial fuel accident. Governor David Ige described the contamination as a crisis, and state health officials have since suspended activities at the Red Hill well and ordered the Navy to clean up all impacted water systems. 

The Navy has taken full responsibility for the accident and plans to clean up the petroleum spill by completely flushing the Red Hill well with more than 25 million gallons of clean drinking water before assessing other potentially affected systems. Nevertheless, the event has put a bad taste in many Hawaii residents’ mouths and added extreme caution in regards to the cleanliness and safety of their water. 

Closing the major well near the state’s capital Honolulu has also elicited a response from the state department telling residents to conserve water to mitigate potential future shortages. The Halawa well directly contributes water to more than 400k residents and local businesses, and the cleaning process is expected to take several weeks.

China Enters a Major International Climate Agreement

Chinese chemical companies must stop emitting HFC-23, a super-pollutant and an unwanted byproduct of the production of hydrochlorofluorocarbon-22. China and India dominate the global HFC-22 production, with 75% in 2017. China recently began enforcing the Kigali Amendment to the Montreal Protocol. The agreement requires China and other countries to stop emitting HFC-23, which is 14,600 times more powerful than carbon dioxide in warming the atmosphere. 

In an address to the U.N. General Assembly, Chinese president Xi Jinping made a new climate commitment not to build any new coal-fired power projects abroad. China will also increase financial support for more green energy projects. The pledge came hours after United States President Joe Biden announced a plan to double financial aid to poorer nations to $11.4 billion by 2024 to help those countries switch to cleaner energy and cope with global warming’s worsening effects.

“We need to accelerate a transition to a green and low-carbon economy,” Xi said in a speech at the U.N. General Assembly. “We will make every effort to meet these goals. China will step up support for other developing countries in developing green and low-carbon energy, and will not build new coal-fired power projects abroad.”

The United Nations first targeted HFC-23 emissions in China in 2006, when a U.N. program known as the Clean Development Mechanism or CDM began incentivizing HCFC-22 producers to destroy their HFC-23 emissions. The program paid HCFC-22 producers in China and other developing countries emission reduction credits, traded with developed countries to meet their emission reduction targets under the Kyoto Protocol. 

Although China has committed to reducing greenhouse gas emissions, ten companies in China built new HFC-22 capacity after April 2015 or are currently building new production facilities. In addition, three companies have also expanded or are in the process of expanding their HCFC-22 production capacity.

However, in another encouraging sign, the Bank of China said that it would no longer provide financing for new coal mining and coal power projects outside of China. 

IPCC Climate Change Report Finds That Major Climate Changes Are Inevitable and Irreversible

The United Nations formed the Intergovernmental Panel on Climate Change (IPCC) to inform national governments about the science and potential impacts of climate change. Humans have heated the planet by roughly 1.1°C since the 19th century, mainly from burning coal, oil, and gas for energy. 

The consequences of global warming can be seen this summer alone, with heatwaves across the US and Canada, floods devastating Germany and China, and wildfires are raging out of control across the world. Unless immediate, rapid, and large-scale action is taken to reduce emissions, the report says, the average global temperature is likely to reach or cross the 1.5°C warming threshold within 20 years. 

Some key points from the IPCC report:

• Global surface temperature was 1.09C higher in the decade between 2011-2020 than between 1850-1900.

• The past five years have been the hottest on record since 1850

• The recent rate of sea level rise has nearly tripled compared with 1901-1971

• Human influence is "very likely" (90%) the main driver of the global retreat of glaciers since the 1990s and the decrease in Arctic sea-ice

• It is "virtually certain" that hot extremes including heat waves have become more frequent and more intense since the 1950s, while cold events have become less frequent and less severe

While this report is more clear and confident about the downsides to warming, the scientists are more hopeful that if we can cut global emissions in half by 2030 and reach net zero by the middle of this century, we can halt and possibly reverse the rise in temperatures. 

Reaching net-zero involves reducing greenhouse gas emissions as much as possible using clean technology, then burying any remaining releases using carbon capture and storage or absorbing them by planting trees.

According to a draft of an upcoming IPCC scientific report, some lifestyle changes could also cut emissions twice the size of Brazil’s current emissions by 2030. Changes include heating and cooling set-point adjustments, reducing appliance use, shifting to human-centered mobility and public transit, reduced air travel, and improved recycling. The draft IPCC found that individual behavior change in isolation cannot reduce greenhouse gas emissions significantly, but individuals can contribute to overcoming barriers and enable climate change mitigations. 

The full second report, set to be released in 2022, will detail how climate change might affect human society, such as coastal cities, farms, or health care systems. A third report, also expected next year, will explore more fully strategies to reduce greenhouse gas emissions and halt global warming.