How Are Global Warming and Extreme Weather Impacting the Workforce Today?

Extreme weather and rising temperatures are already affecting employee health, productivity, and business operations. Productivity tends to decline as the temperature rises, especially in physically demanding or high-risk roles, and over 1 billion workers worldwide are exposed to high-heat episodes. 

This article explains how climate risks affect the workforce, who is most at risk, and how organizations can mitigate these impacts. It is written  intended for HR, risk, and business leaders responsible for employee safety and continuity planning. 
 
What are the key impacts on the workforce?

• Higher risk of heat-related illness and injury 
• Increased absenteeism due to disruptions 
• Reduced productivity and cognitive performance 
• Growing mental health concerns 
• Disruptions to operations and supply chain 

1. Increased Heat-Related Illnesses and Occupational Health Risks

Rising global temperatures are increasing the risk of heat-related illnesses and broader occupational health risks for employees.  
  
Employees working outdoors or in high-risk environments may experience: 

• Heat exhaustion and heatstroke
• Dehydration and fatigue
• Increased risk of workplace incidents
• Respiratory issues linked to poor air quality

Since 1981, the earth’s temperature has been rising at an average rate of 0.08°C every 10 years, and has shot up exponentially to 0.18°C, which can be attributed to global warming. In 2019, 356,000 deaths were attributed to heat-related illnesses. According to the World Health Organization (WHO), an estimated 1.1 billion people are at risk of heat-related illnesses due to extreme weather. This is already affecting employees working in construction, logistics, and other outdoor roles.

2. Increased Absenteeism Due to Disruptions

Extreme weather events such as floods, storms, and hurricanes can disrupt daily operations and prevent employees from working.

This can lead to:

• Disruptions to transport and infrastructure
• Employees being unable to commute safely
• Temporary workplace closures

Natural disasters have been shown to increase absenteeism and reduce workforce availability, especially in regions with frequent climate-related events. For example, research conducted in the United States found that hurricanes resulted in an average of 0.11 additional days of absenteeism per affected employee.

3. Decline in Labor Productivity

Rising temperatures can affect both physical and cognitive performance.
   
Employees may experience:

• Reduced concentration and slower reaction times 
• Increased fatigue 
• Lower overall productivity 

Studies show productivity can decline by around 1% for every degree above 25°C. In practice, even small increases in temperature can lead to noticeable performance drops, particularly in physically demanding or high-risk roles. 

4. Growing Mental Health Challenges

Extreme weather events can also significantly impact employee mental health.

Employees may experience: 

• Increased stress and anxiety 
• Emotional strain following major events 
• Longer-term mental health challenges

The American Psychological Association reports that exposure to natural disasters increases the risk of post-traumatic stress disorder (PTSD), depression, anxiety, and other mental health disorders among affected individuals. In a study from Adelaide, Australia, hospital admissions for mental health conditions were seen to increase by 7.3% during heat waves.

5. Disruption to Supply Chain and Operations

Climate-related events can significantly affect global supply chains, impacting employees who rely on these systems.. 
   
This may include:

• Transport and logistics delays
• Damage to infrastructure and facilities
• Interruptions to production and distribution

According to a report by CDP (formerly Carbon Disclosure Project), extreme weather events and natural disasters can disrupt transportation, production, and distribution networks, causing delays and financial losses. 

6. Economic Consequences

Since 1990, heatwaves have cost the global economy an estimated US$16 trillion.  
  
These impacts can lead to:

• Job insecurity and workforce instability
• Reduced wages in affected sectors
• Potential layoffs due to operational disruptions

The World Economic Forum estimates that by 2030, natural hazard-related factors could result in global productivity losses exceeding US$2 trillion.

7. Recruitment and Retention Challenges

Corporate sustainability and environmental responsibility have become critical factors in attracting and retaining talent. 

Failure to address climate-related risks and employee wellbeing may:

• Affect employer attractiveness 
• Reduce retention rates 
• Impact long-term workforce stability 

A study done by Cone Communications found that 76% of millennials consider a company’s environmental and social commitments when making employment decisions

Strengthen Your Workforce Resilience

Building workforce resilience is essential for organizations to adapt to extreme weather conditions impacts. The National Institute for Occupational Safety and Health (NIOSH) emphasises the need for employers to develop resilience strategies that protect the physical and mental well-being of employees, enhance workplace safety, and ensure business continuity. 

Addressing extreme weather conditions' impact on corporate employees requires collaboration between businesses, governments, and communities. Initiatives such as developing natural hazards-resilient infrastructure, implementing flexible work arrangements, and promoting sustainable practices can help mitigate risks and safeguard employee health and productivity. 

The facts and figures presented highlight the significant impact of extreme weather conditions on corporate employees. From health risks and productivity loss to economic consequences, businesses must recognize and address these challenges that affect a company's reputation. By prioritizing employee wellbeing, implementing resilience strategies, and adopting sustainable practices, organizations can create a healthier, more resilient workforce capable of thriving despite natural hazards.