(OilPrice) Fracking is moving closer and closer to urban areas, but before it actually enters towns and cities the fracking industry should take a look at Long Beach, California, and follow the lessons that have been learnt there.

Back in 1930 the Wilmington oil field was discovered under the streets and harbour of Long Beach, and in 1932 production began to extract the estimated seven billion barrels.

By 1936 some serious subsidence was noted around parts of the city due to the extraction of the oil from beneath the surface. By 1951 and 1952 the city was sinking at around 2 feet a year causing massive damage to roads, buildings, and the harbor.

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