"The COVID virus has been a case of biology confronting and really shaking the complacency of day-to-day politics with a physical reality of sickness and death on a scale we haven't seen for a very long time," Turnbull told the Policy Exchange audience.
"And so the question really is: why do so many people in government and so many people in politics - particularly in the Anglo sphere - not take the scientific evidence on climate change just as seriously?
More about this interview.