Australian wine has no native grapes, and "Vitis vinifera" varieties were introduced from Europe and South Africa in the late 18th and early 19th centuries. Some varieties have been bred by Australian viticulturists, for example Cienna and Tarrango. Although Syrah was originally called Shiraz in Australia and Syrah elsewhere, its dramatic commercial success has led many Syrah producers around the world to label their wine "Shiraz". About 130 different grape varieties are used by commercial winemakers in Australia. Over recent years many winemakers have begun exploring so called "alternative varieties" other than those listed above. Many varieties from France, Italy and Spain
Effects of climate change on wine production Effects of climate change on wine production Climate change in recent times has become a major issue and talking point globally because of its effects on the environment and the repercussions this could be having or possibly have. The effects of climate change on Viniculture (wine production) are described in this article. Grapevines ("Vitis vinifera") are very responsive to their surrounding environment with a seasonal variation in yield of 32.5%. Climate is one of the key controlling factors in grape and wine production, affecting the suitability of certain grape varieties to a particular region as well as the type and