claim: Coastal lake sediments along the Gulf of Mexico shoreline from 1,000 to 2,000 years ago suggest more frequent and intense hurricanes than occur today.
evidence: The Gulf of Mexico saw increased activity between 3,800 - 1,000 years ago with a fivefold increase of category 4-5 hurricane activity, and activity at St. Catherines Island and Wassaw Island was also higher between 2,000 and 1,100 years ago.