GHG Emissions

GHG Emissions in Cities

  • According to the Global Carbon Project, the biggest emitters in 2018 are China, the U.S., EU, India and Russia.
  • India is set to be the 4rd highest contributor with a projected emissions rise of 6.3% in 2018 compared to 2017.


Effect of CO2 emissions

  • Carbon dioxide is a major green house gas.
  • Carbon dioxide traps the long-wave radiation from the earth’s surface and creates an atmospheric layer that prevents earth from cooling at night.
  • CO2 also causes warming of ocean waters and higher water temperatures compromise the oceans’ ability to absorb carbon dioxide.
  • Carbon dioxide also causes acid rain.
  • Emissions combine with moisture in the air and results in precipitation with a high acid content called acid rain.

Impact of GHG Emissions in general

  • Rising temperatures due to greenhouse effect
  • Growth of Urban Heat Island
  • Increasing incidents of Heat waves
  • Rising air pollution
  • Sea-level rise
  • Degradation of Coral reefs
  • Arctic sea could disappear in summers.
  • Shrinking of Permafrost
  • Reduced crop yields
  • Extinction of species driving loss of biodiversity

Actions to reduce vehicular emissions

  • Implementation of BS VI fuel and emission standards.
  • Expand CNG programme.
  • Boost the production of Electric Vehicles
  • Introduce battery operated vehicles in targeted segments of two-wheelers, three-wheelers and buses.
  • Tighten PUC norms for post-2000 vehicles.

Strategies to reduce vehicle numbers on roads

  • Improve Public transport.
  • Augment the service of Metro for carrying more passengers
  • BRTS to be implemented in targeted high frequency routes.
  • Fare integration and common ticketing by introducing common mobility cards.
  • Prepare and implement zonal plans for developing a Non-motorized transport network.
  • Parking policy to reduce congestion and pollution.
  • Traffic management: Introduce early alarm system during traffic congestion.
Section : Environment & Ecology