walk Landscape filters are added to (partly) treat rain water Storm-water storage are installed to mitigate flood Lighter color pavement for reducing heat island effect See also Building material Climate-friendly gardening Drought tolerance Energy conservation Green building Keyline design Landscape design Landscape planning Roof garden Sustainable architecture Sustainable gardening Sustainable landscape architecture Water conservation Xeriscaping External links Sustainable Residential Design: Increasing Energy Efficiency Resource Guide References Energy Sustainable design Sustainable building Types of garden Horticulture Gardening aids Landscape architecture Energy conservation Low-energy building