Global Warming Continues to Threaten Regional Livelihoods

With soaring surface temperatures and new record highs recorded every year for the past 50 years, global warming continues to be one of the biggest threats to various regions around the world. Arizona in particular just recorded the hottest summer in the state’s history, unfortunately coinciding with an increase in heat related deaths across the state. Continued effects from the result of ongoing warming trends in regional environments could pose additional challenges for individuals in the future. 

Record high temperatures can affect the body in a variety of different ways, and create unstable biological conditions that can lead to death. The high surface temperatures also pose threats to infrastructure, technology, and vital installations in urban metropolitan areas. Negative associated effects of heat exposure can be exacerbated when necessary resources are compromised in heat wave events. Officials are still tallying the number of deaths that resulted from the record temperatures in Arizona this year, and many scientists are looking to the future, concerned about new associated risks. 

Record High Summer Temperatures

This summer proved to be a record breaking year for surface temperatures across many regions in the United States, and specifically in Arizona. Record keeping for temperatures began in the state in 1895, and this year experienced three of the highest recorded months on record.

Daily average temperatures this summer holdfast at 97 degrees Fahrenheit which surpassed the three year previous record of 96.7 degrees Fahrenheit. Phoenix also set a record for a 31 day streak of temperatures at or exceeding 110 degrees Fahrenheit. Heat waves like that seen in Phoenix are beginning to happen more frequently as the climate in the region becomes dryer and overall global temperature averages continue to rise. Officials began recording associated deaths in 2005 to identify where policy changes could be applied to lessen the impacts of heat related casualties. They have added several categories to discern the deaths and provide a well rounded investigation into their route cause and resolution.

Heat Related Death Information

• Sex

• Age

• Race

• Ethnicity

• Location 

• Indoors vs Outdoors

• Air Conditioner present?

• Working or not working

• Electricity present?

Collecting vital information like these statistics is vital for researchers when discerning associative risk factors in severe weather events like those of this summer. These electricity statistics are important because findings have influenced power companies to maintain vital electricity powering air conditioners running during heat waves, even if clients have not paid their bills. 

Many of the deaths recorded in previous years happened due to a lapse in power, leaving the affected individuals inside their homes without a working air conditioner. Having the means to cool off is vital during extended periods of record high temperatures, especially when outside averages exceed into the triple digits. 

Counting Heath Related Deaths

Counting and recorded heat related casualties can take an extended amount of time for officials because there are many factors involved in the investigations. There are investigations into the individual's past and present related health conditions, environmental hazards, toxicology reports, autopsies, weather forecasts, and resource assessments. Mariposa county investigates heat deaths including those caused by excessive temperatures, heat stroke, and heart attacks as the result of environmental stress. 

This year's records observed almost 75 percent of the total recorded deaths to have occurred outside exposed to the elements. Almost half of those deaths were homeless people who did not have access to air conditioning, water, or other vital resources. There are an estimated 10,000 people in Mariposa county without access to a home, so the numbers could be potentially much higher if severe conditions persisted even longer. 

Less than 100 of the recorded deaths so far happened indoors in Arizona. Most of these recorded deaths occurred in homes where the in unit air conditioners were turned off or disabled. 

Future of Heat Related Deaths

As global warming continues to impact the world, many regions are experiencing rapid environmental changes. While some regions are experiencing extended winters, rain, and moisture other regions like the southwestern United States have observed quite the opposite. Southern Arizona has just experienced its hottest recorded summer with an extended period of time exceeding triple digit temperatures. These conditions are not atypical for the desert region, however their extended durations and excessively high temperatures are a direct result of the effects of climate change. 

In the future regions like this will continue to see extended periods of extreme temperatures and the cities need to establish enough access to vital resources to prevent increases in heat related deaths. This summer already showed a dramatic increase compared to past years, and hopefully it will lead to improvements in policies controlling the distribution of access to life saving resources like air conditioning, water, and shelter. 

OSHA’s Beat the Heat Contest to Further Temperature Hazard Prevention

Every year companies face challenges during the summer related directly to temperature and heat based injuries, with dozens of employees facing death and severe heat related illnesses every year in the United States. Just last year there were almost 2,000 reported injuries and illnesses related to environmental heat. States in the southwestern United States often face average summer temperatures well over 100 degrees Fahrenheit, subjecting construction and other outdoor industries to dangerous conditions. 

Employers all over the country have already started preparing for the start of summer, and the Occupational Safety and Health Administration (OSHA) has developed several educational resources, regulations, and aids to enhance employee safety. Some techniques OSHA has used to help prevent employee related heat injuries while at work include crafting temperature-illness prevention plans, teaching materials, and ensuring workers have access to things like shade and water. This year OSHA has also launched a ‘Beat the Heat’ contest to incentivize and reward industries taking the necessary steps to prevent employee injuries. 

The ‘Beat the Heat’ Contest

The ‘Beat the Heat’ Contest was started by OSHA this year to uncover more resources and further raise awareness of the risks employees and employers will face this summer. For the contest employers will submit any tools and resources they are implementing to contribute to employee education and work safety regarding heat hazards. The purpose of the contents is industry and public awareness related to the dangers of excessive heat exposure, and to motivate all entities to prevent heat illnesses from occurring. 

A panel of OSHA and federal agency workers will form a judgment panel to decide on a winner of the contest. All members of the panel will have some expertise in relevant heat related subject matter and judge based on the how well the submissions:

• Identify heat risk to workers

• Provide informative messages

• Utilize creative communication methods

• Create engagement with employers, employees, and relevant stakeholders to work together forming effective communications concerning the hazardous risks of heat exposure in the workplace. 

• Apply effective communication and message strategies to be accessible and easily understood by all workers, employers, and relevant stakeholders. 

• Consider the geographic significance of the employment industry sector

Award Categories will include:

• Most Innovative

• Most Creative

• Boldest Message

• Best Non-English Submission

• Highlighting Indoor Heat Hazards

• Highlighting Young Workers

The employee industries will have until June 9, 2023 to submit their entries into the contest, and winners will be determined shortly thereafter. 

Heat-Illness Resources and Education

Heat stress is one of the most commonly reported injuries by workers exposed to extreme heat conditions on the job. Heat stress can result in a variety of complications including heat stroke, heat exhaustion, heat cramps, and heat rashes. High temperatures can also increase the risk of workplace accidents by causing sweaty palms, foggy protective eyewear, and disorientation. Another commonly reported injury is a variety of surface burns from the sun, and from contact with metal surfaces left in direct sunlight. 

Many workers and industries have exposed areas of risk when discussing heat related illnesses and injury. Workers at risk of heat stress include industries that contact the outdoors including hot environments including firefighters, bakeries, farmers, construction workers, miners, boiler room technicians, factory employees, and many others. 

These workers are at a much higher risk when they are overweight, over the age of 65, have heart disease, have high blood pressure, or take medications that may be affected by extreme heat exposure. 

Types of Heat Related Illnesses 

• Heat Stroke

• The most serious heat-related illness that occurs when the body can no longer control its temperature. The body’s temperature will continue to rise until the sweating mechanism fails and the body is unable to cool down, causing permanent disability or death if the person is left untreated. 

• Heat Exhaustion

• The body’s response to excessive loss of water and salt, most likely through excessive sweating. This will most commonly affect the elderly and people with underlying health conditions that are working in hot environments. 

• Rhabdomyolysis

• A medical condition associated with heat stress and prolonged physical exertion in high temperatures. Rhabdo causes the rapid breakdown of and death of muscle releasing large quantities of electrolytes and protein into the bloodstream. This condition can result in irregular heart rhythms, seizures, and kidney damage.

• Heat Syncope

• A fainting episode or unusual dizziness often associated with standing too long or sudden elevation changes of the head above the body. Factors that can exacerbate this condition are dehydration and lack of acclimatization. 

• Heat Cramps

• Usually affect individuals who often sweat profusely during physical exertion or strenuous activity. Sweating depletes the body’s salt and moisture levels creating painful muscle cramps, also an indication of the early stages of heat exhaustion.

• Heat Rash

• A skin irritation caused by excessive sweating during high temperatures and humid conditions. 

All of these conditions should be completely addressed by employer heat prevention plans, and all employees should be fully educated about the risks and early symptom signs related to each heat related illness. 

Heat-Illness Prevention Methods

Planning and supervision are two factors that can significantly reduce heat related illness and injury to employees while at work. Employers should develop a written plan to prevent heat-illnesses from happening so employees have the highest level of safety and awareness.

Prevention Plans should include:

• Who will provide daily oversight?

• How will new workers develop heat tolerance?

• Temporary workers may be more susceptible to heat and require closer supervision.

• Workers returning from leave  (more than two weeks) may be at increased risk.

• How will the employer ensure first aid is adequate and the protocol for summoning medical assistance in situations beyond first-aid is effective?

• How will heat stress be measured?

• How to respond to the National Weather Service’ heat advisories?

• How to determine if the total heat stress is hazardous?

• What training will be provided to workers and supervisors?

Heat conditions can change rapidly and must require day-to-day supervision to ensure all the policies and prevention plans effectively do their job to benefit employees. Supervisory individuals at a work site should be responsible for constantly monitoring and implementing employer heat plans as conditions change throughout the day, and ideally the individual should also be on site where the workers are. 

Dangers of Extreme Heat Faced by Outdoor Workers

Many outdoor workers face a common problem every year: managing summer heat and health complications while on the job. Summer temperatures in southern regions of the United States and other parts of the world are increasing yearly, posing additional risks to these types of employees. However, the risks and complications are not equally imposed, and different types of workers may be at even higher risk, according to experts. 

Three of the hottest cities in the United States where workers are at increased risk include Phoenix, Los Angeles, and Las Vegas. Certain studies have explored the relationship between heat indexes in these southwestern states and work-related injuries, revealing expected trends toward higher temperatures and people getting sick. 

These higher-than-average temperatures often reach more than 88°F during the summer and can cause many health complications. Extended exposure to exorbitant heat can result in dehydration, unconsciousness, heat stroke, and lack of perspiration. Severe heat exposure cases can damage internal organs, disrupting the central nervous system, blood clotting, liver functions, and kidneys.

Due to complications imposed by global warming, summer temperatures continue to increase and expose workers to heat waves, droughts, and higher temperatures. Outdoor workers that face these temperature challenges include industries such as agriculture, construction, maintenance, recreation, and more. Heat-related injuries can keep workers out of a job, sometimes up to 30 days, while healing. The extended recovery times for workers who have experienced heat-related injuries can significantly impact employees and their families. The risks of these work-related injuries impact the lower-class workers at an even higher rate. Researchers also discovered a higher percentage of female workers reported heat-related injuries.

Studies between 2011 and 2018 suggested an increase from 50 to 86 percent of people affected by work-related heat injuries identified as female. The increase in the disproportionate cases of affected female workers may result in more women entering the workforce, specifically into roles within outdoor industries. These results have inspired further research into the hormonal risk component associated with the different heat risks between sexes. Specific biological cycles may place women at higher risks than their male counterparts. 

Another demographic at greater risk of heat-related injuries includes long-standing employees. The same study found that increased work heat complications correlated with increased length of stay at the worker’s company. Employees with five or more years of experience were at a greater risk of work-related heat injuries than employees with less than one year. Experts suggested the increased risk of these long-standing employees may be due to the lack of risk perception or the cumulative tolerance built from chronic heat exposure during their years of service. 

More research is being conducted on the types of employees at the most significant risk and different safety methods these vital outdoor industries can implement to decrease heat-related health implications.