AR4: Mitigation of Climate Change - Technical Summary / Table TS.19

IPCC

Référence à la dimension de genre

Table TS.19: Sectoral mitigation options and sustainable development (economic, local environmental and social) considerations: synergies and trade-offs [Table 12.4].

- Almost always cost-effective, reduces or eliminates local pollutant emissions and consequent health impacts, improves indoor comfort and reduces indoor noise levels, creates business opportunities and jobs and improves energy security

- Government and industry programmes can help overcome lack of information and principal agent problems

- Programmes can be implemented at all levels of government and industry

- Important to ensure that low-income household energy needs are given due consideration, and that the process and consequences of implementing mitigation options are, or the result is, gender-neutral

Termes employés

Table TS.19: Sectoral mitigation options and sustainable development (economic, local environmental and social) considerations: synergies and trade-offs [Table 12.4].

Sector and mitigation options Potential SD synergies and conditions for implementation Potential SD trade-offs
Energy supply and use: Chapters 4-7
Energy efficiency improvement in all sectors (buildings, transportation, industry, and energy supply) (Chapters 4-7)

- Almost always cost-effective, reduces or eliminates local pollutant emissions and consequent health impacts, improves indoor comfort and reduces indoor noise levels, creates business opportunities and jobs and improves energy security

- Government and industry programmes can help overcome lack of information and principal agent problems

- Programmes can be implemented at all levels of government and industry

- Important to ensure that low-income household energy needs are given due consideration, and that the process and consequences of implementing mitigation options are, or the result is, gender-neutral

- Indoor air pollution and health impacts of improving the thermal efficiency of biomass cooking stoves in developing country rural areas are uncertain
Fuel switching and other options in the transportation and buildings sectors (Chapters 5 and 6)

- CO2 reduction costs may be offset by increased health benefits

- Promotion of public transport and non-motorized transport has large and consistent social benefits

- Switching from solid fuels to modern fuels for cooking and heating indoors can reduce indoor air pollution and increase free time for women in developing countries

- Institutionalizing planning systems for CO2 reduction through coordination between national and local governments is important for drawing up common strategies for sustainable transportation systems

- Diesel engines are generally more fuel-efficient than gasoline engines and thus have lower CO2 emissions, but increase particle emissions.

- Other measures (CNG buses, hybrid dieselelectric buses and taxi renovation) may provide little climate benefit.

Replacing imported fossil fuels with domestic alternative energy sources (DAES) (Chapter 4)

- Important to ensure that DAES is cost-effective

- Reduces local air pollutant emissions.

- Can create new indigenous industries (e.g., Brazil ethanol programme) and hence generate employment

- Balance of trade improvement is traded off against increased capital required for investment

- Fossil fuel-exporting countries may face reduced exports

- Hydropower plants may displace local populations and cause environmental damage to water bodies and biodiversity

Replacing domestic fossil fuel with imported alternative energy sources (IAES) (Chapter 4)

- Almost always reduces local pollutant emissions

- Implementation may be more rapid than DAES

- Important to ensure that IAES is cost-effective

- Economies and societies of energy-exporting countries would benefit

- Could reduce energy security

- Balance of trade may worsen but capital needs may decline

 

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