Australia’s two lead climate science agencies – the CSIRO and Bureau of Meteorology – have produced a snapshot providing observations and analysis of changes in Australia’s climate, drawing several conclusions as to their future implications.
Rainfall, Sea-levels and Temperature
Sourced from peer reviewed data on temperature, rainfall, sea level and the atmosphere, the snapshot observed substantial increases in rainfall in the northern and central parts of Australia, while the south and east suffered substantial decreases. Sea-levels also rose by between 1.5 and 3mm per year in the south and east and between 7 and 10mm in the country’s north from 1993 and 2009, with the mean temperature in Australia having increased by about 0.7 °C since 1960, according to the snapshot.
What this means
Based on these observations, the snapshot concluded that Australia will be hotter in coming decades, with average temperatures projected to rise by 0.6 to 1.5 ºC by 2030. The snapshot also concludes that the country will also be a lot drier, with an increase in the number of dry days expected across the country.
The snapshot also highlights the role human activity has played in global warming since 1950, stating that there is greater than 90 per cent certainty that increases in greenhouse gas emissions have caused most of the global warming since the mid-20th century. The report states that; “International research shows that it is extremely unlikely that the observed warming could be explained by natural causes alone.”
The full report can be viewed here.