Jonathan Franzen is the latest figure to preach the gospel of adaptation. But without cutting emissions, it won’t work
When we’re faced with threats of inundation, our reaction has traditionally been to build walls. Sea-level rises, storms and floods have been held back with solid barriers, seawalls and dykes. We have used walls to keep out people, too: the fact that this has failed throughout the ages has not stopped its recent revival in the United States.