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Good practice Imported

#FreetownTheTreeTown — Digital Incentive Model for Urban Reforestation

Sierra Leone · Freetown · See the Sierra Leone profile · See the Freetown profile

Evidence: Descriptive / self-reported Top 42% 71/100 · Ask Evidence Copilot about this practice

Freetown City Council piloted a smartphone-verified, micropayment-incentivised tree-planting model that has geotagged and tracked over 950,000 trees, won a $1M Bloomberg Global Mayors Challenge grant, but drew academic criticism over its carbon-token financing model.

950,000+ trees
Trees planted and digitally tracked (2020–present)
1 million USD
Bloomberg Global Mayors Challenge grant (2022–2024)
550+ jobs
Short-term jobs created (first phase) (first phase)
5 million trees
Revised long-term tree target (by 2030)
#FreetownTheTreeTown — Digital Incentive Model for Urban Reforestation

Details

Maturity
Scaling
Promoter
Freetown City Council (Office of the Mayor), with World Bank/GEF co-financing and Bloomberg Philanthropies
Period
2020–present
Keywords
Urban greening, climate resilience, digital incentive governance

Context

#FreetownTheTreeTown is a city-run pilot testing a digital incentive-and-verification model for urban reforestation as a climate-resilience and flood-mitigation tool, launched by Freetown City Council under Mayor Yvonne Aki-Sawyerr in 2020 as part of the Transform Freetown strategy.

Objectives

To restore urban forest cover for climate resilience and flood mitigation by incentivising verified tree-planting and survival through mobile technology and micropayments.

Activities

Community-based growers use the TreeTracker app (built by nonprofit Greenstand) to create a geotagged digital record with photo for every tree planted, then periodically revisit each tree to water it and verify survival; growers receive mobile-money micropayments tied to verified survival. The programme is co-financed by the World Bank and Global Environment Facility through the Resilient Urban Sierra Leone Project, spanning 13 water catchment areas and 113 reforestation sites. Verified trees also generate 'impact tokens' sold to corporations and institutions seeking to meet climate targets, with proceeds intended to fund further planting.

Results

The programme won the 2021 Bloomberg Philanthropies Global Mayors Challenge, one of 15 winning cities receiving US$1 million over three years (2022-2024), and was a 2023 Earthshot Prize finalist. As of the most recent reporting, over 950,000 trees have been planted, digitally tracked and cared for, against an original goal of 1 million by 2022 and a revised long-term target of 5 million trees by 2030 to restore 5,000 hectares of urban forest; the programme also reports over 550 short-term jobs created in its first phase, prioritising vulnerable women and youth.

Conclusions

Academic commentary in The Conversation specifically criticised the underlying carbon-offset-token financing model as unlikely to generalise to other African cities and raised broader scepticism about carbon-offset schemes' real climate impact — a substantive critique of the model's core financing innovation rather than just its execution. Cumulative planting and survival-rate figures beyond the independently-reported early phases come primarily from the programme's own communications rather than third-party audit.

Implementation

Indicative cost
Medium (€50k–€500k) — Co-financed by World Bank/GEF (Resilient Urban Sierra Leone Project) plus a US$1 million Bloomberg Philanthropies Global Mayors Challenge grant (2022-2024); further funded via sale of 'impact tokens' to corporations.
Time to results
Long (> 3 years) — Launched 2020 under the Transform Freetown strategy; original 1-million-tree goal by 2022, revised to 5 million trees by 2030.
Staffing & skills
Community-based tree growers using the TreeTracker app (built by nonprofit Greenstand), Freetown City Council (Office of the Mayor) programme management

Conditions for success

  • Smartphone-verified geotagging and periodic survival checks tied to mobile-money micropayments
  • Multi-donor co-financing (World Bank/GEF, Bloomberg Philanthropies)
  • NGO technology partner (Greenstand) providing the tracking app

Common failure modes

  • Carbon-offset token financing model criticised in academic commentary as unlikely to generalise to other African cities
  • Cumulative planting/survival figures beyond early phases rely on the programme's own communications rather than third-party audit
  • Token-revenue model's durability unproven at scale

Where it fits

Governance type
municipal government led, multi-donor co-financed
Scale
city-wide
Income level
low-income

Commonly funded by

Philanthropic / foundation funding

Indicative funding routes for practices of this type — always check each programme's current calls and eligibility rules.

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Data sources

Where this practice's information was retrieved from, and when.

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