King Tides and Sea Level Rise, Part 2

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By Nancy Stoner

Growing up in Virginia, I loved it when my family went to the beach each summer. The beach was a place where we could have fun together. Now, as the acting Assistant Administrator for EPA’s Office of Water, I am well aware how climate change may impact the seashore and our estuaries.

Coastal processes such as tides don’t just happen right at the seashore. Tides can extend far up into our estuaries and rivers; we have tides in the Washington D.C., which is 188 miles upstream from the Atlantic Ocean. Sea level rise is a concern here and all around the U.S. too. The relative rate of sea level rise measured at the Washington D.C. tide gauge from 1924 through 2012 is equivalent to 13 inches in 100 years. Sea level is projected to rise even faster in the coming decades. Higher sea levels are potential threats to water infrastructure, to homes, to our drinking water supply, and to wetlands and coastal environments.

This month, the Atlantic and Gulf coasts will be seeing their highest tides of the year in a couple of weeks. These “king tides” can cause tidal flooding in coastal communities. King tides provide a glimpse of the future, and provide us with a glimpse of potential future impacts from rising sea levels, and how things could look if sea levels do not recede. The Middle Atlantic Center for Geography & Environmental Studies website shows where and when king tides are expected to happen.

You can help record king tides through photography. The King Tides International Network recently launched a photo contest to help record king tides from all over the world. You can also submit photos of king tides to EPA’s State of the Environment Photo Project. And, for more information about climate change adaptation please visit EPA’s Climate Ready Estuaries program on the web.

About the author: Nancy Stoner is the Acting Assistant Administrator for EPA’s Office of Water.

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