Rising sea levels will be even worse for the poorest people in the world. Bangladesh, a poor country that’s making good progress on the path out of poverty, is a prime example. It has always been beset by severe weather; it has hundreds of miles of coastline on the Bay of Bengal; most of the country sits in low-lying, flood-prone river deltas; and it gets heavy rainfall every year. But the changing climate is making life there even harder. Thanks to cyclones, storm surges, and river floods, it is now common for 20 to 30 percent of Bangladesh to be underwater, wiping out crops and homes and
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