Introduction

The Life Cycle Assessment (LCA) framework launched by the Office of the Principal Scientific Adviser provides a scientific method to assess the environmental footprint of municipal solid-waste management from collection to final disposal.

Significance

• Evidence-based decisions: Helps ULBs select waste-treatment technologies based on environmental impact rather than only cost.
• GHG assessment: Quantifies net and avoided emissions such as methane, CO₂, NOx and black carbon.
• Circular economy: Supports optimal combinations of composting, biomethanation, biomining and recycling.
• Landfill management: Helps reduce methane and leachate from legacy waste.
• Climate finance: Quantified emission reductions can support carbon-credit mechanisms.

Key technologies & limitations

• Composting: Land-intensive and affected by contamination.
• Biomethanation: Requires segregated biodegradable waste and significant investment.
• Waste-to-Energy: Limited by India's high-moisture, low-calorific waste.
• Landfilling: Faces land scarcity and leachate risks.
• Biomining: Costly and dependent on markets for recovered materials/RDF.

Challenges

• Lack of India-specific city-level datasets.
• Limited technical capacity of ULBs.
• Conventional procurement systems may prioritise lowest cost over environmental performance.

Way Forward

Build Indian LCA databases, strengthen ULB technical capacity, promote source segregation, and integrate environmental performance into municipal procurement.

Conclusion

LCA can shift India’s SWM from a “collect-and-dispose” model to a data-driven, low-carbon circular economy, supporting sustainable urbanisation and the Net Zero 2070 goal