| 21. | Drilling for oil, gas and even water has increased this subsidence.
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| 22. | Subsidence can occur above tunnels, causing damage to infrastructure or cropland.
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| 23. | This region has experienced geological subsidence, and earth tremors are frequent.
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| 24. | The results provided support for Charles Darwin's theory of subsidence.
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| 25. | Pumping of aquifers since the nineteenth century has increased subsidence.
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| 26. | The subsidence continued, reaching up to over seven years.
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| 27. | Mining subsidence affected speeds through the East Midlands and Yorkshire.
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| 28. | It soon suffered from subsidence, possibly caused by an underground stream.
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| 29. | Despite subsidence damage, the dam still holds back the North Lake.
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| 30. | The line itself closed in 1988 due to severe subsidence.
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