Impact on Australian viticulture from greenhouse induced temperature change

Abstract

In Australia, projected shifts in annual average temperature between present day and the year 2030 will be in the order of 0.3 to 1.7°C in many of the viticulture areas. By 2070 the projected increase in annual average temperature in viticultural areas is 0.8 to 5.2°C (Figure 1) (Most major grape growing regions are found within the black ovals). The estimates take into account uncertainties associated with the range of future global warming (the greenhouse gas emissions scenarios (IPCC 2000)) and the range of regional climate model responses (IPCC 2001). For this wine industry impact assessment we were interested in projected changes to average regional climate for all Australian wine-growi..