State: Three of the 11 driest years in 129 years of record-keeping in Columbia have come in the past eight years. Throughout South Carolina, only one year in the past nine has been remarkably wetter than normal. Now, scientists are wondering if the frequent long droughts and infrequent floods of the past decade could change the natural landscape in the state. "I worry about all species," said University of South Carolina naturalist Rudy Mancke. "The drought affects one or two …