Sea Levels Rising at Fastest Rate in 3,000 Years Due to Global Warming
Sea levels around the world are rising at rates not seen in at least 3,000 years, driven by human-caused global warming. The UN climate panel confirmed this finding in 2021 with high confidence.
Sea levels worldwide are climbing at the fastest pace in three millennia, according to the UN's climate science panel. The 2021 report concluded with high confidence that human activities are driving this unprecedented rise through global warming.
The connection between warming temperatures and rising seas is nearly perfect. For every degree Celsius of temperature increase, sea levels rise about 20 meters over time as ice sheets melt and ocean water expands from heat.
U.S. coastal communities now face flooding risks up to 10 feet above normal high tides. NOAA has created tools to help local areas visualize how this flooding could affect their neighborhoods and infrastructure.
The troubling reality is becoming clearer as scientists gather more data. Coastal flooding that once happened rarely during storms could become routine during high tides in many areas.
Rising seas threaten coastal cities and towns with flooding. Millions of Americans living near coastlines could face water damage to homes and businesses as sea levels continue climbing.
Scientists continue tracking sea level data to refine flooding predictions for specific coastal areas.
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