Sydney days above 35°C leap from 3.5 days now to 12 days a year by 2070; rainfall in Sydney to fall by 9 per cent by 2030
Posted by gmarkets on 10 October, 2007
According to Saffron Howden, the first comprehensive climate projections from the CSIRO since 2001 suggested temperatures in Sydney could rise by an average 4.3°C by 2070, reported The Daily Telegraph (3/10/2007, p. 10).
Temperature rises as rainfall drops: In that time, the city’s sweltering days above 35°C could leap from 3.5 days now to 12 days by 2070. Rainfall in Sydney was expected to fall by up to 9 per cent by 2030. Over the next 12 years, the CSIRO and the Bureau of Meteorology expected the number of high and extreme fire danger days nationwide to jump by up to 25 per cent.
Drought months could rise by 40 per cent: Canberra, which already experienced 23 such days every year, could be plagued by up to 38 high and extreme fire-risk days by mid-century. The report also predicted that in the next 22 years drought months characterised by very dry soil could increase by 20 per cent over most of the country. By 2070 they could rise by 40 per cent, helped by substantial declines in rainfall across southern Australia and greater levels of evaporation. The report, ‘Climate Change in Australia’ was made public at the Greenhouse 2007 conference in Sydney on 2 October.
The Daily Telegraph, 3/10/2007, p. 10