Unprecedented falls of crude oil prices, including briefly into negative territory, are a moment of opportunity that Australia can use to improve its liquid fuel security, Ian Cronshaw writes.

In this episode, we chat to Dr John Hewson and Dr Arnagretta Hunter about the catastrophic and existential risks facing humanity, and what we can do to ensure our future.

The coronavirus pandemic has proved that the community can embrace essential change. How we rise to meet future risks will depend not just on government policy and corporate activity, but also on the actions of billions of individuals in their daily lives, John Hewson writes.

In this episode, we talk to the former head of Emergency Management Australia Mark Crosweller about national resilience in an era of climate change and COVID-19.

On this Second Serve, we chat to senior public servant and policy expert Andrew Wear about his new book, Solved: How other countries have cracked the world's biggest problems and we can too.

While the bushfire crisis of last summer has come to an end, the health of Australians remains at risk from climate-fuelled fires, Sotiris Vardoulakis writes.