Are you familiar with Y02/Y04S?

If you are a user of the Y02/Y04S classification scheme for climate change mitigation technologies, we invite you to participate in a short survey. It will only take a few minutes of your time and your answers will help us to improve the scheme further.
You can complete the survey in English, German or French language

Take the survey



Désolé. Actuellement, cette page n'existe pas en français.

IMPORTANT: From January 2013 onwards SGML data (ST.35, ST.32) and ABS files will be discontinued and XML data (ST.36) will be removed from this area and made available as a raw data product. Should you have any questions, please send an e-mail to

I am sorry to inform you that the availability of public abstracts, ST.32 and ST.35 has been discontinued since January 2013.Only secure ST.36 is still available.Should you have any questions, please send an e-mail to


Quick Navigation