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IEA 2019. All rights reserved.

IEA 2019. All rights reserved.

The Future of Rail

 

Opportunities for energy and the environment

 

 

Implications for GHG and local pollutant emissions

Following the significant increase in transport activity, total well-to-wheel GHG emissions from India’s transport sector as a whole increase steadily in the High Rail Scenario, reaching about 1.4 Gt CO2-eq in 2050, which marks approximately a 270% increase over 2017. Despite this, GHG

emissions are 18% lower (or 315 Mt CO2-eq) in 2050 than in the Base Scenario. This takes place

because the additional emissions from rail more than offset the decline in emissions from the Page | 159 other modes. In 2050, the increase in GHG emissions from rail is 34 Mt CO2-eq. This is more

than offset by reductions in light-duty vehicles (130 Mt CO2-eq) and trucks (180 Mt CO2-eq) (Figure 4.18). Action to cut emissions yet further is available across all transport modes, including increasing energy efficiency, scaling up low-emission technologies and measures to reduce road activity, but detailed analysis of such measure is beyond the scope of this report.

On the assumptions adopted about the pace of power sector decarbonisation, well-to-wheel GHG emissions from rail transport in the High Rail Scenario increase at a rate proportional to the increase of rail activity, from about 29 Mt CO2-eq in 2017 to 91 Mt CO2-eq in 2050, 34 Mt CO2-eq higher than in the Base Scenario (Figure 4.19). This level could be reduced. If the power sector were fully decarbonised by 2050, then switching to rail would be a zero-carbon transport option. The High Rail Scenario also achieves a further reduction of 6 kt, in PM2.5 emissions compared with the Base Scenario.

Figure 4.18 Well-to-wheel GHG emissions savings in India’s transport sector in the High Rail Scenario relative to the Base Scenario, 2030 and 2050

Change of WTW GHG emissions (Mt CO2-equivalent)

-400

-350

-300

-250

-200

-150

-100

-50

0

50

100

2030

2050

 

 

Light-duty vehicles

 

 

Heavy trucks

 

Two/three-wheelers

 

Medium trucks

 

 

 

 

 

 

 

 

 

 

Buses and minibuses

 

 

Aviation

 

Rail

 

 

 

 

 

 

 

 

 

 

Notes: Emissions related to shipping activities are not included. Emissions from rail include emissions from conventional rail (both passenger and freight), metro and high-speed rail. A positive number indicates that the WTW GHG emissions in the High Rail Scenario increase with respect to the Base Scenario, a negative number indicates that the emissions decrease.

Source: IEA (2018a).

Key message • GHG emissions from transport are 315 Mt CO2-eq lower in the High Rail Scenario by 2050.

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