UNFCCC Trust Fund for Supplementary Activities and Trust Fund for Participat2015 - UNFCCC - Trust Fund for Supplementary Activities 2015 UNFCCC Trust Fund for Supplementary Activities and Trust Fund for Participat2015 Contribution to United Nations Climate Change Conference. Trust Fund  for Supplementary Action and Trust Fund for Participation. Contribution to United Nations Climate Change Conference. Trust Fund  for Supplementary Action and Trust Fund for Participation.