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Voluntary Projects

A voluntary carbon market functions outside of the compliance markets, enabling companies and individuals to purchase carbon offsets on a voluntary basis.

With more than €20 billion traded in 2006, voluntary carbon markets are already a substantial economic force and will likely grow considerably over the coming years. The voluntary carbon market, although much smaller than the compliance market, (€62.6 million in 2006) is also growing rapidly. This WWF report discusses the role of the voluntary carbon market and provides an overview and guide to the most important currently available voluntary carbon offset standards using the Clean Development Mechanism (CDM) as a benchmark. The report compares the standards side-by-side and outlines the most pertinent aspects of each.

The evaluated standards are:

  • Clean Development Mechanism (CDM)
  • Gold Standard (GS)
  • Voluntary Carbon Standard 2007 (VCS 2007)
  • VER+
  • The Voluntary Offset Standard (VOS)
  • Chicago Climate Exchange (CCX)
  • The Climate, Community & Biodiversity Standards (CCBS)
  • Plan Vivo System
  • ISO 14064-2
  • GHG Protocol for Project Accounting
The History Volume in the Voluntary Carbon Markets in MtCO2e is shown below:


The average credit price by project type OTC 2009 vs. 2010 in US$/t CO2e is the following:
These graphs are under the Copyright and Disclaimer of document form http://www.forest-trends.org/documents/files/doc_2828.pdf