North Carolina Should Move With Nature on Coast

Sandbags can’t hold back the sea. Neither will a state policy allowing “terminal groins,” barriers of rock and steel that run perpendicular to the shore in a futile effort to make a shifting coastline stable.

Models of Greenland Ice Melting Could Be Way Off

Existing computer models may be severely underestimating the risk to Greenland’s ice sheet — which would add 20 feet to sea levels if it all melted — from warming temperatures, according to two studies released Monday.