Sydney, Oct 2 : Temperatures across Australia are likely to rise by one degree Celsius by 2030, but it could rise by up to 5 degrees Celsius in some parts of the country by 2070, a new CSIRO study has revealed.

Penny Whetton, co-author of the new Climate Change in Australia report produced by the Bureau of Meteorology and CSIRO, said the probability of warming exceeding one degree Celsius was 10-20 per cent for coastal areas of Australia, and more than 50 per cent for inland regions.

“Australia is likely to be about one degree warmer by 2030 compared to the temperatures of recent decades and this amount of warming isn't much affected by what we do about greenhouse gas emissions,” said Dr Whetton of the CSIRO.

“However, later in the century, it is much more impacted by what we do with global levels of greenhouse gas emissions. If you allow for ... variation, there's something like a 20 to 30 per cent chance the warming in 2070 in inland areas will exceed 4 degrees Celsius and may even reach 5 degrees Celsius by that time,” he said.

Dr Whetton said the modelling done in the report showed rainfall was expected to decrease in parts of Australia, particularly in southwestern Australia.

“Decreases in rainfall are likely for southern Australia, particularly through the winter, and in southern and eastern parts of Australia through the winter and the spring,” Dr Whetton added. (With inputs from ANI)