Beaver Reintroduction, Scotland and England

Beaver reintroduction in Scotland and England is the cheapest flood defense per mile, outperforming #10 White Rhino Rewilding in immediate cost-effectiveness. These natural engineers have been officially returned after 400 years of absence, reducing downstream flooding by 37% on average through dam-building. However, their tree-felling and land-flooding infuriate some landowners and salmon fishers, creating a polarization far greater than the average rewilding project. Property damage claims exceed £2.3 million annually, yet official studies show their wetland creation boosts biodiversity by 50% more than typical habitat restoration efforts.