Surging gasoline prices in the U.S. are showing signs of impact on consumption, according to one risk analyst. “We’re starting to see some signs of demand destruction, particularly for gasoline, but it’s really just off some of the highs of last year, when gasoline prices were much cheaper,” said Rachel Ziemba, founder of Ziemba Insights, a research firm. Demand destruction refers to persistent high prices or tight supplies that eventually lead to a drop in demand, in this case, for energy products such as oil or gas.