Kanowski believes that both the Herbert River Ringtail Possum and Daintree River Ringtail Possum are at risk because the increased temperatures from global warming force them and other marsupials to retreat up the mountains, thus “reducing [their] area of favorable habitat.”  However, Kanowski is more worried about the increase in Carbon Dioxide () levels.
Kanowski thinks that both the Herbert River Ringtail Possum and Daintree River Ringtail Possum are endangered because rising temperatures from global warming push them and other marsupials upwards, reducing their suitable living space.  However, Kanowski is more worried about the increase in atmospheric CO2 levels.