Why we need prolonged rainfall

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The outlook for the rest of November is wet The outlook for the rest of November is wetALAMY

Aquifers are huge underground layers of rock that store fresh water like vast underground reservoirs — a seriously undervalued national asset few people have heard of, because aquifers are buried out of sight and out of mind. And yet about a third of the water supply of England comes from aquifers, and in southern England they provide three quarters of the water supply. The only way to replenish them is from rainwater seeping down through the ground, and Britain is incredibly fortunate to have lots of rain.

However, the water levels in aquifers are run like a bank balance, in deficit over the summer when it is hotter and drier, and in credit in the winter when it’s colder and wetter. This summer was exceptionally…

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