Table 1. Segment size in US versus Australia.

	Alarmed	Concerned	Cautious	Disengaged	Doubtful	Dismissive
US (Maibach et al. 2011)	18%	33%	19%	12%	11%	7%
Australia	10.8%	22.5%	26.1%	20.0%	11.3%	9.3%

Source: [32]