Rising sea level worries shoreline areas

Washington's low-lying capital city is a bit nervous in planning a new $38 million City Hall near the shoreline of Puget Sound, fearing that global warming and rising waters could submerge much of the downtown in this century.

Climate change experts say one of the most profound and visible effects of global warming will be felt along the thousands of miles of shoreline along the Pacific Coast and the Sound, where even a rise of a few feet can submerge vast acres of prime farm, forest, businesses and residential land, sending folks heading for higher ground and new ways of coping.

Experts predict the global sea level rise could increase as much as 23 inches in the next hundred years.

Living on the southernmost shores of Puget Sound, Olympia leaders and townspeople are used to keeping watchful eye on the sea, since tidal surges can waterlog or threaten a downtown built on mud-flats and fill.

One of the state's epicenters of environmental activism, Olympia wrote its first sea-level assessment 14 years ago and created global warming panels even before that. The city holds community "call to action" forums, complete with scary map projections of how downtown would look like under various scenarios.

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