Climate scepticism in Australia and in international perspective

The 2016 State of the Climate report produced by the Bureau of Meteorology and CSIRO states that ‘Global average annual carbon dioxide (CO2) levels are steadily increasing’ and that ‘Australia’s climate has warmed in both mean surface air temperature and surrounding sea surface temperature by around 1°C since 1910’. While the rate of planetary warming remains a topic of scientific interest, estimates of the proportion of climate scientists who agree that anthropogenic climate change is occurring range between 90 and 100 per cent (Powell 2015; Cook et al. 2013; Anderegg et al. 2010; Doran and Zimmerman 2009; Oreskes 2004).