When people in the small Scottish town of Langholm set out to raise £6 million, they were not simply trying to buy a piece of countryside. Their campaign secured 10,500 acres and helped create the community-owned Tarras Valley Nature Reserve, turning an ambitious local vision into one of the region's largest community-led conservation efforts.

Businessman Paul Lister transformed Scotland's 23,000-acre Alladale estate into a wilderness reserve, planting one million native trees and reintroducing red squirrels since…

When people in the small Scottish town of Langholm set out to raise £6 million, they were not simply trying to buy a piece of countryside. Their campaign secured 10,500 acres and…