Report: High-tide flooding could happen ‘every other day’ by late this century

This article discusses a new report that warns about increased flooding caused by climate change.

High-tide flooding, which can wash water over roads and inundate homes and businesses, is an event that happens once in a great while in coastal areas. But its frequency has rapidly increased in recent years because of sea-level rise. Not just during storms but increasingly on sunny days, too.

Years ago, the late Margaret Davidson, a coastal programs director at the National Oceanic and Atmospheric Administration, warned it wouldn’t be long until such flooding became routine. “Today’s flood will become tomorrow’s high tide,” she said.

new NOAA report has published startling new projections that affirm Davidson’s warning.

By 2100, the report says, “high tide flooding will occur ‘every other day’ (182 days/year) or more often” even under an “intermediate low scenario” in coastal areas along the East Coast and Gulf of Mexico. This scenario works under the assumption that greenhouse gas emissions — which warm the climate and speed up sea-level rise — are curbed.

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