Brownfields redevelopment generally involves conversion of idle, in-fill, urban land parcels into productive, land uses which contribute to the tax base and provide local employment.  Alternatively, some communities have a pressing need to convert brownfields into green space, providing areas for recreational use, parks, and other non-commercial benefits to the community. The coastal town of Whitby in my home county of Yorkshire, UK, is currently wrestling with the choice to develop more affordable housing on vacant urban parcels, or maintain urban green space and develop housing on previously undeveloped open land.