One of the main impacts will be the loss of the Sundarbans, the coastal mangroves on the Western coast, the habitat for several valuable species which act as a barrier against storm surge. A 45 cm sea level rise would inundate 75% of the Sundarbans, and 67 cm sea level rise could inundate all of the system. Estimates indicate that up to 40% of mangroves will be lost. Salinity could increase substantially in many areas as a result.