South Africa in the late 1800s planted millions of Australian acacias to stabilise sand dunes, but today scientists say they're draining rivers and replacing native ecosystems

South Africa in the late 1800s planted millions of Australian acacias to stabilise sand dunes, but today scientists say they're draining…

Across South Africa, an environmental crisis began with a plan over a century ago. By bringing in fast-growing trees from Australia to stop shifting sand dunes and supply wood for…

South Africa, in the mid-1800s, planted millions of Australian acacias as a dune fix; 180 years later, that decision is costing the country…