IIASA has published a series of reports that assess the cost implications of pledges made by Annex I Parties in preparation for the climate change negotiations at COP15 in Copenhagen.

• Presentation by Markus Amann and Fabian Wagner at the Barcelona Climate Change Talks side event, November 2009: Mitigation potentials, pledges and costs of Annex I countries in view of the economic crisis
• Wagner, F. and M. Amann (2009). Analysis of the proposals for GHG reductions in 2020 made by UNFCCC Annex I Parties: Implications of the economic crisis. November 2009.
• Amann, M., J. Cofala, P. Rafaj and F. Wagner (2009). The impact of the economic crisis on GHG mitigation potentials and costs in Annex I countries. November 2009.
• Wagner, F. and M. Amann (2009). Analysis of the proposals for GHG reductions in 2020 made by UNFCCC Annex I countries by mid-August 2009. September 2009.
• Amann, M., P. Rafaj and N. Höhne (2009). GHG mitigation potentials in Annex I countries. Comparison of model estimates for 2020. Report IR-09-034, September 2009.
• Online Mitigation Efforts Calculator (introductory video demonstrating how to use the calculator).
• Online access to GAINS Annex I input data.

IIASA holds a workshop to compare estimates on GHG mitigation potentials and costs in Annex I countries.

The workshop will review on a sector-by-sector basis the critical issues in estimating future mitigation potentials and costs and  present existing national and international estimates of mid-term GHG mitigation potentials and associated costs in Annex I countries. It will discuss strengths and weaknesses of alternative approaches, compare estimates from different modelling teams, and identify critical assumptions that influence policy-relevant outcomes.

IIASA has released Version 2.0 of its GHG Mitigation Efforts Calculator for Annex I countries. This version incorporates, inter alia, more detailed country-specific data for the Member States of the EU, as well as updated estimates on the mitigation potentials for CCS and the transport sector. The extended Mitigation Efforts Calculator enables simulation of burden sharing agreements that incorporate flexible instruments, such as emission trading within Annex I countries and the Clean Development Mechanism (CDM).