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Sustainable drainage and urban wetlands
•
Four million people are currently
at risk of surface water flooding
•
By 2060 there will be a 20 to 40
per cent increase in rainfall which
will produce a 30 to 110 per cent
increase in flood damages to
surface water flooding
•
Over the past 10 years the
number of front gardens with
gravel or paving instead of
grass has tripled