What future work on emissions scenarios would be useful?
Establishment of a program for on-going evaluations and comparisons of long-term
emission scenarios, including a regularly updated scenario database;
Capacity building, particularly in developing countries, in the area of
modeling tools and emissions scenarios; Multiple storyline, multi-model approaches
in future scenario analyses;
New research activities to assess future developments in key GHG driving
forces in greater regional, subregional, and sectoral detail which allow for
a clearer link between emissions scenarios and mitigation options;
Improved specification and data for, and integration of, the non-CO2 GHG
and non-energy sectors, such as land use, land-use change and forestry, in
models, as well as model inter-comparison to improve scenarios and analyses;
Integration into models emissions of particulate, hydrogen, or nitrate aerosol
precursors, and processes, such as feedback of climate change on emissions,
that may significantly influence scenario results and analyses;
Development of additional gridded emissions for scenarios which would facilitate
improved regional assessment;
Assessment of strategies that would address multiple national, regional,
or global priorities;
Development of methods for scientifically sound aggregation of emissions
More detailed information on assumptions, inputs, and the results of the
40 SRES scenarios should be made available at a web site and on a CD-ROM.
Regular maintenance of the SRES web site is needed;
Extension of the SRES web site and production of a CD-ROM to provide, if
appropriate, time-dependent geographic distributions of driving forces and
emissions, and concentrations of GHGs and sulfate aerosols.
Development of a classification scheme for classifying scenarios as intervention
or non-intervention scenarios.