THE TREE
The tree: tapped, never cut
Gum arabic is not harvested by felling a tree. A collector scores the bark of an Acacia Senegal or Acacia Seyal, and over the following weeks nodules of gum exude from the wound and are picked by hand. The tree keeps growing, and a single acacia can be tapped for gum across decades of seasons.
Beyond the gum itself, these acacias hold a role few crops do: their roots fix nitrogen and stabilise soil in a region exposed to erosion, and gum-belt plantations sit along the corridor of the Great Green Wall, the pan-African initiative to push back the Sahara. A tree left standing for its gum is also a tree doing that work.
TAPPED, NOT CUT · DECADES OF YIELD PER TREE · GREAT GREEN WALL CORRIDOR