A small group of volunteers in Scotland has grown nearly 8 million native trees, helping restore lost areas of the Atlantic rainforest.
The effort involved hand-collecting 11 million seeds from remote woodlands.
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About 100 volunteers, including retirees, office workers, and families, spent tens of thousands of hours exploring the western Highlands and islands.
They used detailed maps from NatureScot and Scottish Forestry to locate ancient woodland pockets in challenging, exposed locations.
Ecologists say these native trees have genetic resilience to survive changing coastal microclimates, an advantage non-native species lack.
Only 30,000 hectares of the original temperate Atlantic rainforest remain, now being mapped for restoration initiatives.
The rewilding organization Trees for Life graded and checked collected seeds at its Dundreggan nursery near Inverness, then returned grown saplings to their correct zones.
Organizations like the Woodland Trust used saplings for reforestation projects at Glenn Shieldaig, Assynt, and Loch Arkaig, and sold some to local crofters.
Community and Scientific Rigor
Sheena Macauley, a biology graduate and volunteer from Oban, highlighted the community effort.
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"We need to regenerate for the generations coming behind us," she said, adding that her participation inspired neighbors and friends to join.
Volunteer coordinator Roz Birch supervised teams, explaining how native sessile oak differs from common oak and showcasing unique moss and lichen ecosystems.
"The uniqueness of the rainforest zone is there will be bryophytes, lichens, whole ecosystems on these trees," she said.
The initiative relies on tracking shifting seasonal weather patterns, as climate heating causes seeds to ripen earlier.
This citizen-led project fills a gap because remote locations are too expensive or inaccessible for commercial collectors.
Funded for a fourth year by donors including the People's Postcode Lottery, it is considered the largest citizen-based reforestation program of its kind.
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Marine biologist Laura Corby said, "You're literally growing the future. And that's a beautiful thing."
