Climate change makes once-rare coastal floods more likely — study

Extreme floods that once swamped coastal communities only rarely are becoming far more common as climate change caused by humans pushes sea levels higher, according to new research published Wednesday. Experts say the findings are crucial for making plans about floods and coastal infrastructure as the planet warms. These big coastal floods happen when high tides and storm surges — the amount above normal tide level — combine with seas that are already rising. Those pile on top of nat