Currently climate change is big burning issue in all over the world. It is one of the most important global environmental challenges in front of the world. Each sector like food production, water, health, energy is affected by climate change.

Rapidly growth of population and urbanization in India is linked with the generation of waste which produces methane, one of the leading green house gas emissions.  Methane emissions from landfill are generally considered to represent the major source of climate impact in the waste sector According to many studies on waste generation trend to Indian mega cities like Delhi, Mumbai, Chennai, and Kolkata have demonstrate every year in these cities waste generation statistic is hugely increasing.

Rapid urbanization has resulted in an increasing of the waste burden in urban areas and rising emissions from waste. Human civilization and industrialization have greater than before the emissions of

GHGs which are considered to be one of the main causal factors accelerating climate change in the post industrialization era.

A recent World Bank report on waste management and climate change namely “What a Waste” current waste management methods, specifically emissions from landfill, account for almost five per cent of total global greenhouse gas emissions and 12 per cent of the world’s emissions of methane (CO4), a greenhouse gas with an impact more than 20 times that of carbon dioxide (CO2).

Below these are some boxes try to show which factor belongs to increase and decreased green houses gas emission. Point one in the all boxes show increase GHS and point two show decreased GHGs.

Link between waste management and green house gases (box 1.1)


  1. Green house gases are emitted during the harvesting of trees and the extraction and transport of raw martial.
  2. Waste prevention and recycling delay the need to extract some raw material lowering green house gases emitted during extraction.


  1. Manufacturing products release greenhouse gases during processing and as energy is expended during product use.
  2. Waste prevention means more efficient resources use and making products from recycled material requires less energy, both lower green house gases emitted during manufacturing.


  1. Burning some kinds of waste in an incinerator increases greenhouses gas emission.
  2. Waste prevention and recycling reduce the amount of waste sent to incinerators lowering the greenhouses gases emitted during combustion

Land Filling

  1. Greenhouse gases are emitted as waste decomposes in landfills.
  2. Waste prevention and recycling reduce the amount of waste sent to landfills, lowering the green house gases emitted during decomposition.

Adapted by

Author Baljeet Mehra