Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Killer Tropical Storms in Vietnam Seen as Eerily Routine Ralph Jennings TAIPEI, TAIWAN - Back-to-back tropical storms left at least 28 people dead in Vietnam over the past week, raising fears climate change has brought the Southeast Asian country a spike in severe weather. Vietnam lies in one of the world's five "cyclone centers" and receives an average of 4.3 storms and at least three floods per year, market analysis firm Indochina Research and Consulting estimates. Five other tropical storms have approached Vietnam so far this year. "The problem isn't so much a little more damage this year or a little less damage this year," said Adam McCarty, chief economist with Mekong Economics in Hanoi, "The problem is that it's trending upwards and this is a climate change problem." Even in a 2011 report on the country, the U.N. Food and Agriculture Organization said typhoons, which have winds higher than those of tropical storms, "tend to occur more frequently." The country of 97 million people is now one of the most "hazard-prone" countries in the world, according to the Climatelinks.org database operated by the U.S. Agency for International Development. It should expect higher temperatures, increased "intensity of extreme weather events" and a rise in sea levels, Climatelinks says. Tropical storm Linfa had killed at least 21 and left 14 others missing as of Sunday as it crossed central Vietnam. The second storm, Nangka, hit the same region Wednesday. Twenty-eight people were reported dead. Storms this month have damaged at least 25,000 houses and 84,000 hectares of cropland, local media report. They struck an agricultural zone known for rice, coconuts and tropical fruit, often grown in low-lying areas that are likely to flood. .