A highly confidential report by the Office of National Assessments has warned the government that global warming is expected to lead to more tropical cyclones in southern Queensland, an ice-free Arctic Sea, and the possible break-up of the West Antarctic ice shelf leading to substantial sea-level rise.

The ONA warns of "potentially adverse implications from these developments ... for the security of Australia’s export markets for coal" and urges the government to consider a move away from fossil fuels, although “it might be possible for raw coal to be burned in central locations, such as power stations built close to the sea, where carbon dioxide can be chemically stripped from emissions and dissolved at depth in the oceans”.