Our chalk streams are drying up to supply the homes we already have.
Greater Cambridge, Cam and Granta
What we can show
The Environment Agency has said groundwater abstraction to meet current needs is already damaging protected waterbodies, including chalk streams. That harm is here now. It is not a forecast of the next local plan.
How sprawl adds to this
Each bolt-on estate adds a little more demand to the same aquifer. Nobody adds the pumping up. The streams take the next increment, and the next, because the permission is judged as if the chalk were empty.
What a larger settlement can do
A larger planned settlement can add regional surface storage and reuse, so new demand is not taken from the chalk. That only cuts the existing damage if the extra yield is used to reduce abstraction, not only to serve new homes. Concentration also stops dozens of estates each adding a little more pumping from the same aquifer.
The pattern is fewer, larger places with infrastructure first, not another estate on the edge of every village.
Water · How to stop urban sprawl · All cumulative harms · Corrections
We can stop this
We want building concentrated in fewer, larger places with schools, health, water and transport built in — not another estate on the edge of every village.
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