AIRCRAFT ENGINE EMISSIONS The results of CAEP/5

1. AIRCRAFT ENGINE EMISSIONSThe results of CAEP/5 by Gerard Bekebrede

2. Committee on Aviation Environmental Protection (CAEP) • CAEP is a Committee of ICAO’s Council • CAEP/5 was the fifth meeting of CAEP and was held in Montreal from 8 to 17 January 2001. (The 4th meeting was held in 1998.) • During CAEP/5 the activities of CAEP in the period 1998 - 2000 were discussed • Recommendations were made to ICAO’s Council

3. CAEP: Terms of Reference CAEP undertakes studies approved by the Council, related to control of aircraft noise and gaseous emissions. CAEP shall take into account: • certification schemes: technical feasibility, economic reasonableness and environmental benefit to be achieved; • developments in other associated fields, e.g. land use planning, noise abatement operating procedures, emission control through operational practices, etc.; and • progress in international and national programmes of research

4. CAEP: Workprogramme Aircraft Engine Emissions (1) • assessment of advances in engine and aircraft design technology and the degree to which these could influence emission levels and fuel consumption • review of existing emissions certification methodology with the view to adapting them to take into account cruise emissions parameters • evaluation of the potential environmental benefits of the introduction of an improved Air Traffic Management system (CNS/ATM) • identification of the best operational practices to achieve reductions in aircraft emissions (including ground support equipment, use of auxiliary power units)

5. CAEP: Workprogramme Aircraft Engine Emissions (2) • identification of the best operational practices to achieve reductions in aircraft emissions (including ground support equipment, use of auxiliary power units) • identification and evaluation of the potential role of market based options, including emissions charges, voluntary agreements and emission trading regimes, to limit or to reduce greenhouse gases of aviation. • advise on long term technology goals

6. CAEP: 1998 - 2000 • Activities on noise were carried out in working groups: • WG3: Emissions technical issues • WG4: Emissions operational issues • WG5: Market based options • FESG: Cost-benefit analyses • Steering Group meetings in 1999 and 2000 • Full CAEP meeting in January 2001

7. CAEP/5: Results on aircraft engine emissions • Recommendations of CAEP/5 included: • further development of the elements necessary for an emissions trading programme for international aviation emissions, consistent with the Kyoto protocol • additional work on voluntary mechanisms and the possible use of charges to address emissions

8. CAEP/5: Results on aircraft engine emissions (2) • including in the Global Air Navigation Plan a methodology for analysing the environmental benefits of CNS/ATM • publication of an ICAO Circular on Operational Opportunities to Minimize Fuel Use and Reduce Emissions • CAEP adopted an action plan on emissions

9. CAEP/5: Results on aircraft engine emissionsNext presentations session 8: • Reduction of emissions at the source by Bob Shuter • Operational improvements to reduce emissions by Alfredo Iglesias • Market based options by Michael Rossell and Stephen Seidel • Cost-benefit analyses by Hans Pulles