“…Flooding is a threat for each of the Asian mega-deltas (Woodroffe et al, 2006). Land subsidence due to underground water and oil extraction is now prevalent in many of the deltas including the Chao Phraya (Mikhailov and Nikitina, 2009;Phien-wej et al, 2006) and the Nile (Bohannon, 2010). Water availability may also limit future growth.…”