“…Villages protected by mangroves had only about half of the monetary loss from flood and wind damage associated with cyclone Sidr, compared to other villages (Akber et al, 2018). Even a 100 m deep coastal shelterbelt of healthy mangroves can reduce storm surge velocity by up to 92%, protecting embankments from costly damage (Dasgupta et al, 2019), and a double shelterbelt of mangrove and Casuarina trees, 200-300 m in depth, can reduce storm surge height by up to 22% and velocity by up to 49% (Das et al, 2010).…”