Heatwaves Affecting Work Efficiency, lets learn more about it how?

Heat waves

They are phases of exceptionally high temperatures compared to a region's typical climate.

The criteria for classifying a heat wave differs by region according to historical temperature trends.

A heat wave is identified when the maximum temperature at a station hits 40 degrees Celsius or higher for plains and 30 degrees Celsius or higher for hilly areas.

Elements such as elevated humidity, powerful winds, and extended periods can intensify their effects.

Effects

The International Labour Organization (ILO) estimates that India experienced a loss of approximately $100 billion in productivity from heat-related work interruptions, which notably affected informal and outdoor laborers such as farmers, construction personnel, and delivery workers.

The World Bank estimates that 75% of India's labor force (380 million individuals) is employed in sectors exposed to heat.

Heatwaves negatively impact agriculture, decreasing crop production (e.g., wheat yields decline 5.2% for every 1°C increase) and influencing livestock.

Cities experience the "urban heat island" phenomenon, where buildings and roads absorb heat, leading to higher temperatures at night.

The CEEW report shows that 57% of Indian districts face a significant risk of extreme heat. Regions such as Delhi, Rajasthan, Tamil Nadu, and Uttar Pradesh are especially at risk.

Fast urban growth and inadequate housing amplify heat hazards, particularly in Tier-II and Tier-III cities.

Actions by the Government

Government actions encompass heat action plans at municipal and state levels, NDMA directives, and initiatives such as shaded shelters, water provision, and urban greenery. Certain cities, such as Chennai, have identified urban heat islands for development purposes.

Nevertheless, rural regions continue to be underserved, with insufficient healthcare and infrastructure.

Experts recommend insurance plans for workers impacted by heat, strategic long-term investments, and compensation frameworks for income loss stemming from heat-related work interruptions.

Heatwaves represent an escalating climate risk that requires synchronized immediate measures and enduring policy approaches aimed at resilience, equity, and sustainable urban growth.