Damage to property and public services owing to land subsidence menaces many coal-mining areas. Its cost can be estimated annually in millions of pounds.
Why does it happen?
Can it be prevented?
Who pays for it?
See 'Television Diary' on page 15
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Damage to property and public services owing to land subsidence menaces many coal-mining areas. Its cost can be estimated annually in millions of pounds.
Why does it happen?
Can it be prevented?
Who pays for it?
See 'Television Diary' on page 15
