A new study on global temperatures showed a trend towards a rise of about half a degree Celsius in worldwide temperatures since 1850, with a steeper increase since the mid 1970s.
Prof Trevor Breusch, of the Crawford School of Economics and Government at the Australian National University, studied three series of recorded global temperature data to look for clear evidence of a trend in global temperatures.is original study was prepared for the Garnaut Review in 2008 - an independent study commissioned by the government on the impact of climate change on the Australian economy - and has since been updated with the latest data.
Advertisement"There is sufficient evidence in the long run of temperature records to support the existence of a warming trend," the Herald Sun quoted Breusch, as saying.
"From the 1850s to today it's somewhere over half a degree Celsius a century. The additional three years for which temperature data are now available were among the warmest on record," he added.
Breusch said around the mid 1970s there had been an increase in the warming trend.
"There is no evidence of a weakening or reversing trend in more recent years, as suggested by some commentators," he said.
The new study, however, did not explore the cause of the trend in temperature rises.
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