Nature-based “green” infrastructure provides carbon sequestration and water quality benefits while reducing wave amplification. Also, it improves resilience for coasts affected by rising temperatures, reduced oxygen levels, acidification, etc. In some locations, seawalls and other “gray infrastructure” are combined with green infrastructure to deal with tsunamis and other extreme events. Green infrastructure protects seawalls and levees, which reduces maintenance costs, reduces the need for extensive embankment, and increases the life expectancy of gray infrastructure.

This session seeks input on implementing “green and gray infrastructure.” How have these strategies incorporated local environmental, social, and equity considerations? What physical and biological coastal locations/characteristics are best suited for these adaptation strategies? What challenges must be addressed to achieve broader application of these adaptation strategies? Where have scientists and policy makers come together on “green and gray infrastructure” to enhance water quality, habitat restoration, fisheries, climate resilience, and local economic opportunities?