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Inside Gas Kitchens, Workers Face Heat as High as 50°C

Commercial kitchen air pollution can exceed health guidelines, with gas kitchens exposing workers to heat, nitrogen dioxide, benzene and carbon monoxide.

Joe Jacob

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inside gas kitchens

Researchers monitored 27 commercial gas kitchens in California, Pennsylvania and New York. The three all-electric kitchens stayed inside every limit. Gas pilot lights left burning overnight pushed some readings above what the same kitchens recorded during service.

Researchers attached a temperature monitor to a chef’s shoulder during a cooking session of roughly five hours. The average reading was 92°F (33°C). At its peak it touched 106°F (41°C).

One chef on one shift is a small sample, and the scientists treated it that way. But it sits inside a larger study, published on 6 October, that comes to an uncomfortable conclusion for the restaurant trade. In about seven out of ten commercial kitchens that cook with gas or propane, workers were exposed to air pollution, heat, or both at levels above health-based guidelines. The kitchens that cooked only with electricity did not cross a single line.

Gas Kitchens Can Reach Extreme Heat During Service

The paper, “Combustion-Derived Air Pollution and Heat from Gas-fired Appliances in Commercial Kitchens Can Exceed Health-Based Guidelines”, comes from researchers at PSE Healthy Energy, the Stanford Doerr School of Sustainability and New York University’s Grossman School of Medicine, working with chef Christopher Galarza. It was published in Environmental Research Letters. The team says it is the first US study to compare gas, propane and all-electric commercial kitchens under real working conditions.

What was measured

The team monitored 27 kitchens in California, Pennsylvania and New York. Twenty-one cooked with natural gas, three with propane and three were all-electric. Instruments recorded nitrogen dioxide, benzene, carbon monoxide, carbon dioxide, methane and air temperature at locations where staff actually work. Readings were taken during service and again overnight, when the kitchens were closed.

The kitchens volunteered. PSE recruited restaurants, cafés, hotels and similar sites through a public sign-up, with a preference for full-service kitchens that had commercial ventilation hoods. Galarza recruited most of the participating kitchens himself.

The air

Nitrogen dioxide is a by-product of burning fuel. It inflames the airways and raises the risk of asthma. During cooking hours, the hourly average measured outside the hood systems was above the US Environmental Protection Agency’s one-hour standard of 100 parts per billion in 17 of the 24 gas and propane kitchens.

That benchmark was written for outdoor air, not for workplaces, and the researchers use it as a health-based yardstick. The occupational comparison is starker. In one kitchen, a 15-minute average went above 1,000 parts per billion, the short-term workplace limit recommended by the National Institute for Occupational Safety and Health.

Other pollutants also crossed lines. Carbon monoxide went over California’s one-hour guideline of 20 parts per million in three gas kitchens. Benzene, a known human carcinogen, went over California’s one-hour guideline of 8.4 parts per billion in five.

The findings bear on a common assumption, that a good hood solves the problem. The hoods helped, according to the study, which says they reduced pollutant exposure but did not remove it. At worker-relevant locations in roughly two-thirds to seven-tenths of the gas-fired kitchens, concentrations still went over health benchmarks.

The heat

Temperature was recorded in 19 of the gas kitchens. In 13 of them, or about 68 per cent, readings went above 90°F (32°C). That is the high-heat trigger in the heat rule OSHA, the US workplace safety regulator, proposed in 2024, and the level at which California’s indoor heat illness regulations apply. Ten kitchens recorded a maximum above 100°F (37°C), and four went past 122°F (50°C).

Weather was not the explanation. On days when the outdoor temperature stayed under 75°F (23°C), 10 of 13 gas kitchens still went over 90°F indoors. The researchers conclude that the heat comes mainly from the cooking equipment.

Yannai Kashtan, the lead author and an air quality scientist at PSE, told Stateline that nothing here will surprise anyone who has worked a line, since cooks already know these are “intense environments full of heat and pollution.” What the study adds is measurement. He pointed to the physics: a gas flame transfers only part of its heat to the pan, and the rest goes into the room.

Only two all-electric kitchens had temperature data. Both recorded some of the lowest in-service temperatures in the whole study, two of the three lowest. Two is too few to build an estimate on, and the authors do not claim otherwise.

Pilot lights overnight

The overnight finding may be the most unexpected. In about seven in ten of the gas kitchens monitored after closing, levels of nitrogen dioxide, carbon monoxide, carbon dioxide, methane and benzene were higher overnight than during service. Ventilation was switched off, and the pilot lights stayed lit. Seven kitchens went above the 100 parts per billion nitrogen dioxide mark during off-work hours.

Drew Michanowicz, a principal scientist at PSE and a co-author, said some of the highest indoor levels the team recorded came “when no one was cooking at all.” That matters for cleaning crews and for staff who arrive early to open up. He added that the same kind of commercial appliances are used in schools, hospitals and mixed-use buildings, so the exposure probably extends well beyond restaurants. The study did not measure those buildings.

None of the all-electric kitchens exceeded a pollutant threshold at any hour, day or night.

Who is affected

The US restaurant and food service industry employs an estimated 15.7 million people. About five million of them spend all of their working hours in the kitchen.

Galarza, who is a co-author as well as the person who found most of the kitchens, told Canary Media the results show “what it is we’re exposing ourselves to.” In the release, he said that kitchen staff should not have to accept excessive heat or polluted air as part of the job, and that the study gives owners and chefs better information on what equipment choices mean for the workplace.

Rob Jackson, a Stanford professor of Earth system science and a co-author, said burning gas in a restaurant kitchen is as suspect as burning it at home, and that the all-electric kitchens emitted none of the pollution seen in the gas ones. Jackson directs a Stanford programme called Electrification for Health. PSE ran the work under its Methane + Health Initiative. Readers should know that the authors have a long record of research on the health costs of burning gas indoors. Panama Bartholomy, executive director of the Building Decarbonization Coalition, which promotes electrification, welcomed the results in a statement quoted by Canary Media.

What the study cannot say

The sample is small. Twenty-seven kitchens spread across California, Pennsylvania and New York is a modest number, and only three of them were all-electric. Kitchens that agreed to be monitored may not look like the average restaurant, and the researchers did not select them at random. The study measured air and temperature, not the health of the people working in the kitchens. Whether any of these readings has made someone sick is a separate question that this work does not try to answer.

The yardsticks also come from different places. Some were written for outdoor air, some for one-hour exposures, and one is a recommended workplace limit. They are accepted ways of judging whether air is harmful, but they are not all legal limits that a kitchen would be cited for breaking.

What happens next

OSHA’s proposed heat rule has not been finalised. Legal analysts tracking the rulemaking say it has stalled, and that the Labor Department’s regulatory agenda points to a supplemental proposal in December 2026. Until a federal standard exists, OSHA relies on its general duty clause to cite employers for heat hazards, and a number of states, California among them, enforce their own rules.

For owners, the study points to two things that can be changed: how well the kitchen is ventilated and which fuel the appliances burn. Its authors describe both as the main controllable factors behind the air and heat that workers face.

Society

Greece Passes Social Media Ban for Children Under 15

Greece’s new law will bar children under 15 from social media from January 2027, adding to international efforts to regulate young people’s access to online platforms.

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Teenager using a smartphone as Greece moves to ban social media access for children under 15.
Greece Social Media Ban for Children Under 15. Representational image. Image credit: https://kaboompics.com/ Pexels

Greece’s Parliament has approved legislation prohibiting children under 15 from using social media, with the restriction scheduled to take effect on January 1, 2027. The law requires platforms to verify users’ ages and provides for penalties if companies fail to comply.

The decision adds Greece to a growing international effort to regulate children’s access to social networking platforms, as governments respond to concerns about online safety, excessive screen use and children’s mental health.

Prime Minister Kyriakos Mitsotakis had announced the plan in April. His conservative New Democracy party used its parliamentary majority to pass the bill after a debate that continued from Thursday into Friday. The opposition PASOK party abstained, while other opposition parties voted against it.

How will the Age Restriction Work?

Social media companies will have to introduce age-verification systems to enforce the minimum age. Greece has identified digital tools such as Gov.gr Wallet and Kids Wallet as possible ways to support age checks. The precise implementation and how platforms will meet the requirements remain important questions ahead of the January deadline.

The government has linked the measure to concerns that social media use can interfere with children’s sleep, concentration and personal relationships. However, enforcing the age limit will depend on how platforms identify underage users and prevent them from creating or retaining accounts.

Age verification also raises questions about privacy. Systems that require identity documents or other personal information could expose users to additional data risks. The European Commission has been developing an age-verification system designed to confirm whether someone meets an age threshold without sharing their identity with the platform.

Greece Joins a Wider International Push

Australia became the first country to enforce a nationwide ban on social media for children under 16 in December 2025. Its law requires covered platforms to prevent underage access, with substantial financial penalties for non-compliance.

In Europe, the European Commission proposed the EU KIDS Act in September 2026. The proposal would prevent children under 13 from accessing social media accounts, allow limited, parent-supervised accounts for those aged 13 and 14, and set 15 as the minimum age for independently managed accounts. The proposal still needs approval through the EU legislative process.

These approaches differ in their age thresholds and enforcement mechanisms, reflecting an ongoing debate about how governments should balance children’s protection with access to digital communication and information.

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Climate

Climate Disasters Disrupted Schooling for 171 Million Students in 2025, UNICEF Finds

Climate disasters disrupted schooling for 171 million students worldwide in 2025, highlighting the urgent need for climate-resilient schools and education systems.

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A child walks past a weather-damaged wooden school building with a partially missing roof.
Climate-related disasters can damage school infrastructure and disrupt children's access to education.Image credit:UNICEF/UNI779465/Ralaivita

Climate-related disasters disrupted schooling for at least 171 million students worldwide in 2025, affecting one in every 10 school-age children, according to a new UNICEF report that warns of growing threats to learning, educational equality and future economic prospects.

The report, Learning Interrupted: Global Snapshot of Climate-Related School Disruptions in 2025, released on September 10, analysed data from 106 countries and territories. It found that storms, floods, heatwaves, droughts and wildfires caused school closures, shortened teaching hours, reduced attendance and shifts to remote learning.

The findings underline how climate change is emerging as a threat to educational continuity, particularly in countries where schools lack the infrastructure and resources to withstand extreme weather.

Storms and floods interrupt learning

Storms were the leading cause of climate-related school disruptions in 2025, affecting 109 million students globally. Floods affected at least 70 million, while heatwaves disrupted schooling for approximately 50 million children. These figures overlap and should not be added together as separate groups.

In Pakistan, severe monsoon flooding in August delayed the return to school for more than 28 million students. In Egypt, a powerful Khamsin wind-and-dust storm prompted a nationwide suspension of classes for one day, affecting more than 28 million students.

The problem extends beyond individual disasters. Forty countries experienced multiple rounds of climate-related school disruptions during 2025, exposing students to repeated interruptions throughout the academic year.

Floods can damage classrooms, sanitation facilities and learning materials, while extreme heat can make classrooms unsafe and undermine students’ ability to concentrate. Even after schools reopen, damaged infrastructure, disrupted transport and household financial pressures can prevent children from returning to regular attendance.

A growing threat to educational equality

Three-quarters of the students affected in 2025 lived in low- and lower-middle-income countries, where education systems often have fewer resources to prepare for disasters and restore teaching afterwards, UNICEF found.

The World Bank’s 2024 report, Choosing Our Future: Education for Climate Action, offers further evidence of the long-term challenge. It estimated that 400 million students globally experienced school closures due to extreme weather between 2022 and 2024. In affected schools in low-income countries, students lost approximately 45 instructional days between January 2022 and June 2024, compared with around six days in high-income countries.

These interruptions can compound existing educational disadvantages. Students from wealthier households may have access to private tutoring, digital devices and alternative learning arrangements. Children from poorer households may lack internet connectivity, electricity or suitable spaces to study during closures.

South Asia’s exposure highlights the challenge

UNICEF’s previous assessment, covering 2024, recorded at least 242 million students experiencing climate-related school disruptions across 85 countries and territories. South Asia was the most affected region, with 128 million students impacted. Heatwaves affected an estimated 171 million students worldwide that year.

India was among the countries affected by heat-related educational disruptions. In April 2024, extreme heat contributed to school interruptions across Bangladesh, Cambodia, India, the Philippines and Thailand, affecting at least 118 million children collectively. The figure represents the five-country group, not India alone.

The 2024 and 2025 totals should not be interpreted as a direct year-on-year decline. The reports covered different sets of countries and climate events, and the number of recorded disruptions depends on the incidents identified in each assessment.

Climate-resilient schools become a priority

UNICEF estimates that disruptions experienced in 2025 could cost affected students at least US$200 billion in lifetime earnings through lost learning and widening educational inequalities. This is a projection of potential future losses, rather than income already lost.

The World Bank has argued that relatively modest investments can help schools adapt. Its 2024 analysis estimated that a one-time investment of US$18.51 per child could help mitigate learning losses through measures such as improving classroom temperatures, strengthening school infrastructure and training teachers.

Climate disaster
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Aerial view showing significant flood damage in a residential neighborhood with inundated streets and homes.Image credit:Pexels

UNICEF is calling for climate resilience to be incorporated into education planning, alongside investment in stronger school buildings, emergency preparedness and systems that allow teaching to continue during disasters.

As extreme weather increasingly interrupts academic calendars, education systems must prepare not only to enrol children but also to protect their ability to learn. Climate-resilient infrastructure, early-warning systems and plans for educational continuity will be essential to ensuring that disasters do not deepen existing inequalities in access to education.

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Society

Global Job Market Faces a Growing Inclusion Gap as AI and Digitalisation Reshape Work

Global employment faces a growing inclusion gap as AI and digitalisation reshape the labour market. UN and ILO reports highlight persistent informal employment, youth exclusion and unequal access to the skills needed for emerging jobs.

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As technology reshapes the world of work, millions continue to face barriers to secure employment and decent working conditions.Image credit:Pexels

The global economy is undergoing a profound employment transition, driven by artificial intelligence (AI), digitalisation, demographic changes and the shift towards greener industries. Yet, while these forces are expected to create new career opportunities, access to employment and the benefits of technological progress remain deeply unequal, according to the United Nations’ World Social Report 2026.

Released on October 15, the report, published by the UN Department of Economic and Social Affairs (UN DESA), warns that billions of people remain excluded from the jobs, skills, infrastructure and social protections required to participate in economic transformation. Its findings highlight a central challenge for policymakers: creating employment opportunities is not enough unless people can access them and secure decent working conditions.

The scale of the problem is evident in the report’s latest figures. In 2025, 58 per cent of workers worldwide were informally employed, while 27 per cent of young women aged 15–24 were neither employed nor participating in education or training. An estimated 2.2 billion people also lacked internet access, limiting their ability to benefit from digital services, online learning and emerging employment opportunities.

More Jobs, but Unequal Opportunities

The challenge extends beyond unemployment to the quality and security of work. The International Labour Organization’s Employment and Social Trends 2026 report estimated that global unemployment would remain at 4.9 per cent in 2026, equivalent to approximately 186 million people. However, nearly 300 million workers continued to live in extreme working poverty, surviving on less than US$3 a day. The report also projected that 2.1 billion workers would be in informal employment in 2026, often without adequate social protection or employment security.

Young people face particular difficulties entering the labour market. According to the ILO, youth unemployment reached 12.4 per cent in 2025, while approximately 260 million young people were not in employment, education or training. For many, the transition from education to work remains uncertain, particularly where economies fail to generate enough productive jobs.

These challenges coincide with substantial changes in the kinds of jobs employers expect to need. The World Economic Forum’s Future of Jobs Report 2025, based on projections from more than 1,000 employers, estimates that technological, economic, demographic and green-transition trends could create 170 million jobs globally by 2030 while displacing 92 million. This would produce a net gain of 78 million jobs. However, the report warns that the transition will require extensive workforce adaptation. Nearly 40 per cent of workers’ existing skills are expected to change by 2030, and 63 per cent of surveyed employers identified skills gaps as a major barrier to business transformation.

The projections suggest that the central employment challenge is not simply whether jobs will disappear, but whether workers can move into emerging roles. Demand is expected to grow in areas such as AI, data analysis and cybersecurity, alongside essential occupations in healthcare, education and agriculture. Workers whose skills do not match changing requirements risk being excluded even as new vacancies emerge.

Digital Access and Skills Will Shape the Transition

Access to technology is another dividing line. The World Bank’s Digital Progress and Trends Report 2025 identifies disparities in connectivity, computing infrastructure, relevant data and digital skills as barriers to wider participation in the AI economy. While AI adoption is expanding, high-income countries continue to dominate important areas of AI innovation and computing capacity.

Global job crisis
Ai
Youth

Representational image.Image credit:Pexels

For people without reliable internet access, affordable devices or opportunities to acquire digital skills, the shift towards online recruitment, digital services and AI-assisted work can deepen existing disadvantages. Connectivity alone, however, is insufficient: workers also need relevant training, accessible education and opportunities to apply their skills in productive employment.

The UN report argues that governments must invest in quality education, lifelong learning, digital and AI capabilities, affordable connectivity and stronger social protection. Labour-market policies must also support decent working conditions, equal opportunities and training that helps workers move between occupations.

For developing economies with large young populations, the stakes are particularly high. A growing workforce can support economic growth only when enough productive jobs are available and workers can acquire the capabilities those jobs demand. Without such opportunities, demographic potential can translate into prolonged unemployment, insecure work and widening inequality.

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