How is work affected by climate change in France?

French Workers' Increasing Exposure to Extreme Temperatures

The latest Oxfam report, "Climate Change, We Are Not Ready", denounces the lack of anticipation by companies and elected officials regarding the consequences of heat on the world of work. This document builds upon the 2017 ANSES report, which had already warned about the increase in occupational risks linked to three major factors:

•    Rising temperatures
•    Changes in the biological and chemical environment
•    Changes in the frequency and intensity of climate hazards
The findings are clear: 36% of French workers are already exposed to temperatures exceeding 35°C in their workplace. This figure highlights the urgent need for action to safeguard employees' health.

Which Workers Are the Most Vulnerable?

Outdoor Workers

People working in sectors such as agriculture, construction, or transportation are particularly exposed to:
•    Extreme temperatures (heat and cold)
•    Deteriorating air quality
•    Disease-carrying pests whose spread is promoted by climate change

Indoor Workers

Contrary to popular belief, working indoors does not always provide sufficient protection:
•    Many workers operate in insufficiently ventilated or air-conditioned environments
•    Poorly adapted buildings can become real furnaces
•    Public structures (hospitals, nursing homes, schools) are often the least well-equipped

The Alarming Impact on Educational Institutions

The Oxfam report highlights a particularly concerning situation for the education sector:
By 2030, 55% of French schools will be exposed to temperatures exceeding 35°C.
Even more worrying, 100% of nursery schools in Bouches-du-Rhône, Seine-Saint-Denis, Paris, and Gironde will be affected. These figures raise crucial questions about children's learning conditions and teachers' working environments.

Economic and Health Consequences

Loss of Productivity and Economic Losses

Heat has a direct, measurable impact on work efficiency:
•    Starting at 24°C, a significant drop in productivity is observed
•    Above 30°C, this productivity drops by half
•    Thermal stress was responsible for nearly 650 billion working hours lost worldwide each year between 2001 and 2020
•    In France, these losses represent between 0.1% and 0.5% of GDP, equivalent to the hours lost during Covid-19 lockdowns

Impact on Workers' Health

Exposure to excessive heat leads to:
•    Chronic fatigue
•    Decreased alertness and increased risk of accidents
•    Thermal stress
•    An increase in sick leave

The Urgency to Act in the Face of an Accelerating Phenomenon

The situation will worsen rapidly for several reasons:
•    France is warming twice as fast as the global average
•    Europe is the fastest warming continent
•    Heatwaves are becoming more frequent and more intense

Concrete Solutions to Adapt the World of Work

Diagnose to Better Act

Inaction is often explained by the difficulty of translating global figures into local impact. To address this:
1.    Conduct climate vulnerability assessments for each site
2.    Project the evolution of risks year by year
3.    Translate these risks into concrete economic and financial consequences

Invest in Adapting Workplaces

Solutions exist but require a long-term vision:
•    Improvement of ventilation and air conditioning
•    Greening of buildings and outdoor spaces
•    Adjustment of working hours during periods of extreme heat
•    Training of employees and managers in climate risk management

Conclusion: Keeping People at the Heart of Adaptation Strategies

Adapting work tools to climate change meets a threefold necessity:
•    Economic: preserve productivity and profitability
•    Asset-related: maintain infrastructure value
•    Human: guarantee the well-being and health of workers

This is why tools such as Tardigrade AI's Climate Performance Diagnostic constitute a preferred way to understand current and future risks, and to build an operational, financial, and human resilience strategy.

FAQ: Impact of Global Warming on Work in France

What are the most vulnerable professional sectors to global warming in France?

The most exposed sectors are those involving outdoor work (agriculture, construction, transportation), but also manufacturing industries where buildings are poorly adapted to high temperatures. The public sector (education, healthcare) is also heavily affected due to often aging infrastructure.

At what temperature does workplace productivity begin to decrease?

Studies show that productivity begins to decline significantly starting at 24°C. Above 30°C, it can drop by 50%, directly impacting companies' economic performance.

What legal obligations do employers in France have regarding workplace temperatures?

The French Labor Code does not set a specific maximum temperature, but Article R.4223-13 states that enclosed premises must be protected against excessive temperatures. The employer has a general safety obligation and must take appropriate measures to protect the health of workers.

How to calculate the economic cost of global warming for a business?

The cost can be evaluated by combining several factors: productivity losses linked to high temperatures, increase in sick leave, additional energy consumption for air conditioning, and potential business disruptions during extreme weather events.

How to conduct a climate vulnerability assessment for my business?

A climate vulnerability assessment generally includes three steps: identifying the climate risks specific to your location, evaluating the sensitivity of your facilities and activities to these risks, and analyzing your adaptive capacity. Specialized service providers such as Tardigrade AI offer services to support companies in this process. This is the role of Horizon: to quantify in euros the climate impact on each of your sites, and then identify the most cost-effective adaptation measures.

Heat, cold, wind, rain: are your sites ready? Protect alerts you up to 5 days in advance when a critical threshold for your activity, sites, or teams is about to be exceeded; Horizon quantifies in euros the climate impact on each of your sites and identifies the most cost-effective adaptation measures. Book a meeting with our experts.