Higher temperatures due to global warming are expected to make cold areas of New Zealand more temperate and better suited to grape cultivation. So it's no surprise that New Zealand wine-growers are upbeat about a future that includes climate change. As wine-growers navigate weather patterns to produce premium grapes, New Zealand wine is winning an international reputation for premium quality. Low volumes mean that wine-growers must focus on producing high quality wines to turn a good profit. A 2005 study by Rabobank, the Dutch-based bank which specialises in the food and agribusiness, found that New Zealand wines fetched the highest price of "New World" wines on the international export market at an average of $5.25 per litre, followed by $2.92 for Australian wines and $2.17 for wines from the United States. The amount of wine the country can produce is and always will be limited, a factor which adds to the premium image. New Zealand wines account for about 1 percent of the world's wine exports. Read on.