Community-powered restoration since 2011
We're a nonprofit alliance of foresters, scientists and volunteers restoring forests, coastlines and clean energy access — one project, one village, one volunteer at a time.
2,847,000 trees surviving and counting · 43 countries & regions
A small core team, a very large community, and a simple rule: local people lead, we support.
Green Horizon Initiative began in 2011 as a handful of foresters replanting a single burned valley in the Pacific Northwest. Today we're a global alliance of 61,000 volunteers, 240 partner communities and a deliberately small full-time team.
We keep overhead under 11 cents of every dollar, publish every budget openly, and measure success in trees that are still alive three years after planting — not in seedlings distributed.
"We don't plant trees for the photos. We plant them for the decade after everyone stops looking."
Trees Surviving to Year 3
Active Volunteers
Countries & Regions
Active Restoration Sites
Three focused programs, each monitored for at least three years after launch.
We reconnect fragmented forests with native-species corridors, restoring watersheds and wildlife routes together with 240 partner communities. Every planting is monitored for three years.
Read more →Mangrove restoration, coastal cleanup and plastic interception across 14 coastal regions — protecting nurseries for marine life and natural buffers against storm surges.
Read more →Small solar micro-grids and energy-literacy curricula for off-grid schools, so classrooms keep their lights on and their science classes running all year round.
Read more →Reports, milestones and honest numbers from our teams on the ground.
Eighteen months ahead of schedule, the Blue Coast Program crossed its one-millionth surviving mangrove across 14 regions. Here's what the monitoring data tells us.
Read more →Our monitoring team pairs drone imagery with on-the-ground surveys to estimate canopy health. Why both matter, and where the machines still fall short.
Read more →The full breakdown of 2025 spending: 63% programs, 26% field operations, 11% administration. As always, every line item is public.
Read more →Whether you give a weekend a month or an hour a week, it grows into something bigger. Chapters meet twice a month in most cities — no experience needed, training provided.
Become a Volunteer Corporate & school partnerships: partners@greenhorizon-initiative.org