The main sources of information used to identify and characterize REDD+ projects and programs in the ID-RECCO database are listed in the table below. Additional sources of information are mentioned on each project's page. We use multiple data sources to gather and verify information about a project/program.

Active data sources

(Data sources that was used to identify REDD+ Projects and Programs since IDRECCO was constructed in 2013, and are still active/providing relevant information)

Source Link and Notes (as of Dec 2020)
Allied Offsets: New website (post 2018), aggregating data from several carbon certification standards (e.g., ACR, CAR, CDM, VCS, Gold Standard) https://alliedoffsets.com/
APX - VCS Registry: data on carbon transactions, country by country. As of May 2020, the APX VCS Registry access is no longer available. Transactions from APX are now registered on the VERRA registry https://registry.verra.org (Previously: https://vcsregistry2.apx.com)
BioCarbon Fund Initiative for Sustainable Forest Landscapes https://www.biocarbonfund-isfl.org/programs
Calmel, M.; Martinet, A. & Grondard, N. (2011), 'REDD+ à l'échelle projet. Guide d'évaluation et de développement.', Technical report, ONFI (5 case studies) http://www1.onf.fr/lire_voir_ecouter/++oid++1226/@@display_media.html
Carbon Catalog http://www.carboncatalog.org
Clean Development Mechanism (CDM) registry: all registered and pipeline CDM projects, and a small record of carbon transactions https://cdm.unfccc.int/Registry/index.html
Climate, Community and Biodiversity Alliance (CCBA) database. CCBA is now part of VERRA https://registry.verra.org/app/search/CCB Previously: https://www.climate-standards.org/category/projects/
Code REDD: REDD projects http://www.coderedd.org
Earth Innovations Institute, CIFOR and Governor’s Climate & Forests Task Force – The state of jurisdictional sustainability: Jurisdictional profile https://earthinnovation.org/programs/state-of-jurisdictional-sustainability/#sjsprofile
Forest Carbon Partnership Facility (country-based source of supporting documents for projects/programs identified elsewhere) https://www.forestcarbonpartnership.org/countries
Forest Trends - Forest Carbon Portal http://www.forestcarbonportal.com/project/
Forest Trends – REDD-X :  Tracking Forest Finance https://reddx.forest-trends.org
Global Canopy Programme - The REDD country database (Collaborative resource for REDD Readiness). REDD+ readiness activities, notably pilot projects Access to this website is now restricted (http://www.theredddesk.org/countries)
Gold Standard https://www.goldstandard.org/
Institute for Global Environmental Strategy (IGES) - REDD+ database http://redd-database.iges.or.jp/redd/  
Lawlor, K.; Madeira, E. M.; Blockhus, J. & Ganz, D. J. (2013), 'Community Participation and Benefits in REDD+: A Review of Initial Outcomes and Lessons', Forests 4(2), 296--318 https://www.mdpi.com/1999-4907/4/2/296    
Markit Environmental Registry: data on carbon transaction and -when available- link to project’s PDD. As of May 2020, transactions from VERRA (previously VCS and CCBA) projects are not listed on Markit but on the VERRA  registry (https://registry.verra.org). Transactions from other certification standards are still available on Markit http://mer.markit.com/br-reg/public/index.jsp?entity=project&sort=project_name&dir=ASC&start=0&acronym=&limit=15&name=&standardId=
Plan Vivo   https://www.planvivo.org/project-network/ (Previously: http://www.planvivo.org/projects/registeredprojects/
Verified Carbon Standard (VCS) database. VCS is now part of VERRA. https://registry.verra.org/app/search/VCS (Previously http://www.vcsprojectdatabase.org/)
SCS global services (and other verifiers)   http://www.scsglobalservices.com/certified-clients/verified-carbon-offset-projects
Chenost, C.; Gardette, Y.; Demenois, J.; Grondard, N.; Perrier, M. & Wemaere, M. (2010), Bringing forest carbon projects to the market, UNEP https://agritrop.cirad.fr/589590/1/ForestryCarbonProjects.pdf  
REDD monitor: news https://redd-monitor.org
  Inactive data sources

(Data sources that was used to identify REDD+ Projects and Programs in 2013, but are no longer active/providing relevant information)

Source Link and Notes (as of Dec 2020)
Voluntary REDD+ Database, by the REDD+ Partnership: Readiness arrangements only, with focus on financial flows Website not anymore dedicated to REDD+ (http://www.reddplusdatabase.org)
Global database on REDD+ and other forest carbon projects, by the Center for International Forestry Research (CIFOR): 338 projects (including some readiness activities) Website no longer provides project information (http://www.forestclimatechange.org/redd-map/)
Eco2data (limited access): around 100 projects, mainly AR Website not available anymore (http://eco2data.com/)
Forest Carbon Asia: news   Not providing info on REDD+ projects/programs. Now focused on Global Sustainability. https://forestcarbonasia.org