From: Arnulf GRUBLER <firstname.lastname@example.org>
To: email@example.com, firstname.lastname@example.org, email@example.com,
firstname.lastname@example.org, Fewewar@ternet.pl, email@example.com, firstname.lastname@example.org,
email@example.com, firstname.lastname@example.org, email@example.com,
firstname.lastname@example.org, email@example.com, Jean-
Paul.Hettelingh@rivm.nl, firstname.lastname@example.org, email@example.com,
Subject: sulfur discussion paper
Date: Wed, 05 Mar 1997 17:18:58 +0000
Sulfur Emissions in New IPCC Scenarios
Arnulf Gruebler, IIASA
SUMMARY OF PROPOSED ACTIVITIES
1. Review and comments of present sulfur discussion paper
2. Revision by sulfur paper lead author
3. Preparation of comparison of regional sulfur scenarios (by lead
author with inputs from other members of writing team and experts)
Timing: August 1997.
4. Specification of minimum and desirable sulfur emission scenario
characteristics and specification (for modeling teams in open process)
5. Establishment of key relationships between sulfur emissions and
other salient scenario driving force variables (income,
technological change environmental, non-GHG policies) using the
simple metric of sulfur to carbon emission ratios.
6. Adoption of specific sulfur control scenarios in conformity with
overall scenario ``storylines''.
7. Distribution of ``template'' sulfur scenarios to selected modeling teams
for assessment of climate and acidification impacts of sulfur scenarios.
Timing: End of 1997.
The purpose of this discussion paper is to review briefly
the assumptions on sulfur emissions in the IS92 IPCC scenarios,
advances in knowledge and modeling of future sulfur emission
scenarios since IS92, as well as to initiate a discussion on how
to incorporate future sulfur emissions trends into the new IPCC emissions
The present draft will be revised based on feedback
received within the members of the IPCC writing team as well as
additional outside experts.
2. Sulfur emissions in IS92
The treatment of sulfur emissions in the IS92 scenarios was
In addition to the dominant energy sector emissions,
also sulfur emissions from industrial processes and land-use changes
(biomass burning) and (a constant flow) of natural sources were