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Explore our Tanzania programme and support planting
This quiz was created by ForestNation using our programme information and the scientific sources credited below. General research explains how forests work; it does not measure this programme’s outcomes.
The Usambara Mountains are part of the Eastern Arc, known for species found in very few other places. Restoring suitable forest habitat here can support biodiversity as well as carbon storage. Protecting the forests that remain matters too.
CO₂ mixes through the atmosphere. Trees take it in during photosynthesis and use the carbon to grow. Keeping more carbon out of the air contributes to limiting global warming, wherever the tree grows. That includes the climate shared by people in California, London and everywhere else. It does not promise a measurable temperature drop in a particular town.
Trees cool nearby places through shade and evapotranspiration, the movement of water into the air from plants and surfaces. Evaporation uses heat. This helps explain why local trees matter wherever you live: trees in Tanzania contribute to the shared climate, while nearby trees provide nearby shade.
A 2026 Earth-system modelling study found that where forests were restored strongly affected the climate outcome. Tropical restoration generally produced local cooling in its scenarios. In snowy regions, darker tree cover can absorb sunlight that snow would reflect. This supports careful site selection, not a claim that every tropical tree beats every tree elsewhere.
Roots help hold soil together. Leaves and litter soften the impact of rain, while forest soils can help water soak in. Less soil washing away can mean less sediment entering streams. The result depends on the site and its management; trees cannot prevent every flood.
Fruit trees can bring food and harvest income once they mature. ForestNation’s programme includes seedlings for family farms alongside forest restoration. Benefits depend on the species, growing conditions and care.
Nursery work starts before planting day. Local people raise seedlings, then support transport, planting and care. ForestNation’s Tanzania programme includes paid nursery opportunities for women.
School nurseries give students a chance to learn by growing and caring for trees. ForestNation’s Green Schools programme connects this learning with reforestation.
Open land is not automatically damaged forest. Natural grasslands and savannas have their own wildlife and value. Good restoration considers local knowledge, land rights, water and suitable species. In some places, helping existing trees regenerate is a better fit than planting new ones.
ForestNation’s standard planting price is $1 per tree. The programme connects planting with nursery work, ongoing care and community activities. To compare value fairly, look at what each programme includes and the evidence for its results. Price alone does not establish how much carbon a tree will store.
Working Trees collected field measurements at five Tanzania planting sites. Models translate tree measurements into carbon estimates. The published annual figure includes a 30% uncertainty discount; individual outcomes vary with growth and survival. It is not an individually measured result or a carbon-registry-certified credit.
These actions work together. Restoring forests can support carbon storage, wildlife and livelihoods, while protecting existing forests preserves what is already there. Emissions cuts remain essential. Supporting planting in Tanzania is a contribution to that wider work, with local people helping grow and care for the trees.