The nuclear waste repository in Finland designed to outlast modern civilisation

The first engineered structure built to last for 100,000 years is about to begin operations. The hope is that Onkalo, deep below ground in Finland, will offer a safe place for the country to store nuclear waste

芬兰Onkalo处置库把核废料深埋地下400多米，用铜罐、膨润土和稳定基岩构成多重屏障，试图在十万年以上尺度上封存放射性物质。文章通过德国Asse II的失败教训和法、瑞、美等国的不同方案，说明深时工程真正的难点在于长期安全与未来世代的信息传递。