India's Festival Economy
Festivals, Pollution and Waste
How festivals create air pollution from firecrackers, water pollution from idol immersion and waste from decorations, and approaches to greener celebrations.
Festivals bring joy but also environmental costs.
Air pollution
- Firecrackers at Diwali cause spikes in PM2.5 and noise.
- Combined with winter weather, they worsen smog in north India.
Water pollution
- Idol immersion with paints and plaster pollutes rivers, lakes and seas.
- Offerings and flowers add waste.
Waste
- Plastic decorations, packaging and disposable plates.
- Tonnes of waste after large events.
Greener options
- Green crackers and community light shows.
- Clay idols and artificial ponds.
- Flower recycling into compost or incense.
- Reusable decorations.
Externality
Festive pollution is a negative externality: celebrants don’t bear its health costs.
Balance
Policies must respect traditions while protecting health.
The flower recycling
A startup collects flowers from temples after festivals and turns them into incense sticks, reducing river waste.
Thinking festivals have no environmental impact
They can cause air and water pollution and waste.
Key takeaways
- Firecrackers spike air pollution.
- Idol immersion pollutes water.
- Festivals generate large waste.
- Green crackers, clay idols and recycling help.
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