Context:
- Traditional transport choices are driven by convenience, comfort, and cost.
- But, there is a push for a “modal shift” globally - shifting from road and air transport to railways due to environmental and economic concerns.
Environmental Impact of Different Modes of Transport:
- Key emission statistics:
- Transport sector contributes ~25% of global energy-related carbon emissions.
- Road transport is the largest emitter because cars, buses, and trucks are significant sources of CO₂ and other greenhouse gases (GHG) that cause global warming.
- Emissions per passenger-kilometre:
- Cars: 148g CO₂
- Airplanes: 123g CO₂
- Buses: 63g CO₂
- Trains: Only 19g CO₂
- Freight transport efficiency: Railways are significantly more efficient and less polluting than trucks for freight movement.
Global Trends and Policy Measures:
- Declining rail use (2007–2021):
- Freight share by rail reduced from 51% to 40% globally.
- Passenger share reduced from 12% to 8%.
- Main reason: Growth of road transport, especially in India and China.
- Potential environmental impact:
- If current trends continue, there will be a 16% rise in GHG emissions in lower-income countries.
- Switching to rail could prevent 1.8 billion tonnes of carbon emissions by 2050.
- International best practices:
- European Union: Goal - Shift 30% of road freight to rail/ships by 2030, and over 50% by 2050.
- China: Implementing freight shift policies, resulting in reduced road traffic and cleaner environment.
India’s Transport Challenge and Opportunities:
- Current scenario:
- India has one of the world’s largest railway networks.
- Yet, road preference is increasing due to better infrastructure and convenience.
- Government initiatives:
- National Rail Plan (NRP): Target is to increase freight modal share to 45% by 2030.
- Investment in Dedicated Freight Corridors (DFCs).
- Need for a similar passenger rail strategy.
- Urban transport models:
- Delhi Metro (2021): It removed 5 lakh vehicles from roads daily, reducing emissions by 23.82g CO₂/km.
- Mumbai: Metro and monorail share is projected to rise from 2% to 36%, reducing motor vehicle share from 35% to 24%.
Climate Goals and Carbon Credit Opportunities:
- India's climate commitments:
- A modal shift from road to rail is crucial for India, which is one of the world’s largest GHG emitters, with 14% coming from the transport sector alone.
- India plans to attain net zero status by 2070, which will require drastic cuts in GHG emissions from all sectors, including transport.
- Carbon credit mechanism:
- Modal shift can yield carbon credits to fund green infrastructure.
- Conditions include:
- Proving additionality (emissions saved would not occur without intervention).
- No double-counting of emission savings.
- Delhi Metro example: Sold credits but couldn’t include them in India’s national targets.
- Energy source consideration: Electrified trains must run on clean energy (solar/wind), not coal-powered electricity.
Conclusion:
- Modal shift to rail is vital for sustainable development India has the potential to lead globally by investing in eco-friendly transport.
- With the right planning, India can balance development with climate responsibility, setting a precedent for the world.