Study says two-thirds of state beaches eroding

Scientists say protection structures reversed long-term trend

Decades ago, about 40 percent of California's beaches were eroding while the rest were actually growing a little bit over time.

But in the past 25 years, the number of beaches along the state's 1,100-mile coastline that have been losing ground has swelled to two-thirds of the total, according to a new study.

And many of those eroding beaches are in San Diego County.

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