The online calculator allows an interactive comparison of mitigation efforts among the Annex I Parties in 2020.

The user can specify targets in any of following criteria, individually for a selected Party, or a common target for all Annex I Parties. The calculator provides resulting allocations to Parties, considering different frameworks for flexible instruments.

The tool calculates, for a given mitigation target in 2020, for each Annex I Party,

• resulting GHG emissions
  • national total GHG emissions (in Mt CO2eq),
  • on a per-capita basis,
  • change in emissions relative to 1990/2005,
• implied GHG mitigation costs
  • the resulting carbon price,
  • total costs for the Party,
  • per-capita GHG mitigation costs,
  • costs as a percentage of the GDP in 2020.

In addition, the user can specify four different settings for the use of flexible instruments:

• all measures are implemented domestically in each Annex I country,
• with carbon trading within Annex I countries,
• with CDM permits, but without trading within Annex I countries,
• with CDM permits and carbon trading within Annex I countries.

The analysis can be conducted for alternative baseline projections (under development),and simulating discount rates of social planners or private actors.

A user manual provides an introduction to the Mitigation Efforts Calculator (MEC) to help a new user get started. An introductory video, demonstrating how to use the MEC, is also available.