Climate change allowances updated by the Environment Agency
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March 2, 2016

New advice from the Environment Agency provides an update to previous climate change allowances to support the National Planning Policy Framework (NPPF).

The NPPF sets out how the planning system should help minimise vulnerability and provide resilience to the impacts of climate change. NPPF and supporting planning practice guidance on Flood Risk and Coastal Change explain when and how flood risk assessments should be used. This includes demonstrating how flood risk will be managed now and over the development’s lifetime, taking climate change into account. Local planning authorities refer to this when preparing local plans and considering planning applications.

The changes took effect on the 19th February 2016 and relate to peak river flows, peak rainfall intensity, sea level and offshore wind speed allowances.

Envireau Water will be using these allowances in all future FRAs whilst also considering the impact of the new allowances on drainage, the calculation of runoff rates and storage.

More guidance is available at the Environment Agency website.

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