The paper is a collaboration with former EAS graduate student Rebecca Caldwell, IU anthropologist Eduardo Brondizio, and IU geography graduate student Sacha Siani.
Spoiler alert: there are 339 million people living on deltas, 24 million of whom live in countries with developing economies in the tropical cyclone belt on sediment starved deltas (which are the ones in greatest danger of flooding).
ERI Press Release EurekaAlert! Nature Article