Glossary
 
GHG

Greenhouse Gases – Gases such as CO2 that trap heat in the atmosphere
 
UNFCCC
United Nations Framework Convention on Climate Change, signed in 1992.

Kyoto Protocol

International agreement under which industrialised countries commit to reduce GHG emissions
 
Annex 1
Developed countries with emission reduction commitments, as defined in the Kyoto Protocol
 
non-Annex 1
Developing countries without emission reduction commitments, as defined in the Kyoto Protocol

Emission Reductions

Units ascribed to the reduction of greenhouse gas related emissions

Voluntary market

Market for emission reductions purchased by organisations wishing to offset their carbon footprint on a voluntary basis.

VER – Verified Emission Reduction

Emission reductions created by projects which have been verified outside of the Kyoto Protocol – including credits from pre-registration CDM projects; 1 VER corresponds to 1 tonne of CO2e emission reductions.

Compliance market

Market for emission reductions purchased by organisations with Kyoto targets.

CDM
Clean Development Mechanism – The provision of the Kyoto Protocol that governs project-level carbon credit transactions between developed (Annex 1) and developing (non-Annex 1) countries

CER
Certified Emission Reduction – Carbon credits created by Clean Development Mechanism projects; 1 CER corresponds to 1 tonne of CO2e emission reductions
 
JI
Joint Implementation - The provision of the Kyoto Protocol that governs project-level emission reduction transactions between between entities located in Annex 1 countries 
 
ERUs
Emission Reduction Units - The output of Joint Implementation projects. 1 ERU corresponds to 1 tonne of CO2e emission reductions

EU ETS

European Union Emissions Trading Scheme – A market-based ‘cap and trade’ system for GHGs adopted by European Union member states in January 2005 in advance of their obligations under the Kyoto Protocol

EUA

European Allowance – Allowance unit issued to installations covered by the EU ETS.

CO2e

Carbon dioxide equivalent – The unit used in the Kyoto Protocol

tCO2e

Tonnes of carbon dioxide equivalent, units for carbon dioxide equivalent calculations

ERPA

Emission Reduction Purchase Agreement 
 
VERPA
Verified Emission Reduction Purchase Agreement