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➔ People work less productively in hot conditions

➔ As the workplace warms, occupational heat exposure standards defined by the International Organization for Standardization (ISO) and other bodies are being breached

➔ Heat stress affects employees working outdoors or in non-cooled environments, except for the coldest and highest-altitude areas

➔ Effects are most serious for subsistence farmers in developing countries who cannot avoid daytime outdoor work

➔ Adapting to these changes can be cost-effective, such as through sun protection measures, but the full extent of adaptation is not well studied and could be extremely limited, especially for outdoor workers

➔ For indoor situations, air conditioning or insulation would need to be increased, but equally incur a cost