delta

Ms. Low rehashes that old story, but concedes the delta is at least partially a product of the fact that “many women want to spend time at home with their children.”

The country is essentially a large delta crossed by three major rivers, the Rhine, Schelde, and Maas, that flow into the unpredictable North Sea.

Over time, sediment carried by rivers built deltas at the head of the Gulf, cutting off tidal access to inland areas.

Many of its largest cities -- including Shanghai, Shenzhen and Hong Kong -- sit in delta regions made of soft, water-saturated sediment that naturally sinks over time.

At Martín García Island, Argentina, a series of crags amid the Río de la Plata delta, she tries to make sense of crooked crosses cast from a single mold.