For Vulnerable Barrier Islands, A Rush to Rebuild on U.S. Coast

Despite warnings from scientists, new construction continues on U.S. barrier islands that have been devastated by storms. The flood protection projects that accompany this development can have harmful consequences for coastal ecosystems being buffeted by climate change.

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.