Ever wondered how we would detect a nuclear disaster in Sydney?

Most people don’t realise that the ground beneath our feet is full of invisible radiation. In this episode, Andrew and Josh speak with researchers at the University of Sydney to discuss how groundbreaking research has mapped natural gamma radiation across Sydney, to build a clear picture of the background environment. This map provides the basis for understanding future changes in the radiation levels – such as during a nuclear disaster.

Researchers Matilda Lawton and Tengiz Ibrayev explain the basics of radiation, how they undertook their study and what this means for disaster managers.

• Sydney Morning Herald – Scientists mapped Sydney’s radiation. One busy suburb stands out.
• Radioverse Map — Global citizen science radiation map for data upload
• University of Sydney – Radiation Research — Research group involved in the studies
• ANSTO — Australian Nuclear Science and Technology Organisation — Australia’s nuclear facility for research and safety
• The spectrometer device mentioned in this episode is a Radiacode – radiacode.com.

• Matilda Lawton – LinkedIn | Twitter
• Tengiz Ibraev – LinkedIn | Research Profile

As a major city, Tokyo faces one of the highest disaster risks in the world with a 70% probability of being struck by a major earthquake in the next 30 years. In pre-modern Japan, disasters were accepted as a force outside of out control, and subsequently residents had a high level of awareness of disaster risk. Today, with emergency management agencies established and large engineering projects in place, catastrophes are seen as manageable by experts and authorities, leading to disengagement of citizens with their own resilience.

Associate Professor Christian Dimmer joins the show to discuss this challenge, in light of the 15 year anniversary of the 2011 Tohoku earthquake and tsunami. Christian discusses the concept of a ‘quadruple disaster’, which includes demographic challenges alongside the immediate impacts of the earthquake and tsunami. Christian emphasizes the importance of understanding the historical context of disasters in Japan, the shift in disaster response culture, and the need for community engagement in disaster preparedness and recovery.

Christian is an Associate Professor for Urban Studies at Waseda University in Tokyo. He has a background in urban planning, disaster recovery and community resilience. He earned his PhD in Urban Engineering from The University of Tokyo and has served on the faculties of both the University of Tokyo and Waseda, teaching courses in transition design, sustainable urbanism and theories of public space. Christian is also a co-founder of the Tohoku Planning Forum and the Tokyo chapter of the design-led disaster response organisation Architecture for Humanity, where he has worked to connect civil society, professionals and communities in rebuilding after major disasters.

Links:
Journal article by Christian Dimmer: Tokyo’s Perpetual Resilience Project: Between Local Knowledges and Universal Modernist Concepts

Deputy Commissioner of the WA Department of Fire and Emergency Services (DFES) Melissa Pexton shares the recovery story of Fitzroy Crossing, a remote community devastated by tropical cyclone Ellie in 2022 / 2023.

Located 400 kilometers east of Broome, this region faced unprecedented flooding that challenged traditional emergency management approaches.

In this episode, Melissa shares how the recovery process focussed on community empowerment, provided economic opportunities to local Aboriginal businesses and harnessed community leadership. Over 90 Aboriginal businesses were contracted to deliver recovery works, securing more than $90 million in contracts. This strategy not only rebuilt physical infrastructure but also created significant economic opportunities, with local workers trained and employed in reconstruction efforts.

A key lesson from the recovery effort was understanding the community context and allowing local leaders to guide the recovery process. Key insights from the discussion include the critical role of cultural navigation, the need for robust community discussions, and the importance of creating long-term sustainable recovery strategies.

Disaster recovery can be a transformative process that goes far beyond rebuilding infrastructure – join Andrew, Josh and Mel as they discuss the recovery efforts in the Kimberley.

Communities have always played an important role during disasters. Australia’s growing population, exposure to increasingly frequent and impactful severe weather events and evolving trends in volunteerism are transforming how communities respond to disasters. As natural hazards become more frequent and severe, non-government organisations and grassroots community groups will increasingly seek to – and must – play a role in during response and recovery efforts.

In 2024, Andrew was awarded a Churchill Fellowship to travel to some of the most disaster affected countries and those which have experienced large numbers of community members mobilising to assist. Andrew and Josh visited Japan, Türkiye, Norway, Sweden, Iceland, the UK, US and Chile.

In this episode, Andrew and Josh discuss insights and findings from the trip, and lessons for others considering how to better prepare for informal volunteers.

Download the full report from the Churchill Trust website.

Veteran of the Royal New Zealand Navy Stephen Gibson joins the show this month to share his experience transitioning out of the military into humanitarian work, including in disaster zones across the Middle East.

After 23 years in the Navy where he deployed as a peacekeeper to Yugoslavia and the Solomon Islands, Steve joined the United Nations Relief and Works Agency for Palestine Refugees. Steve quickly discovered that while his experience in the Navy set him up well for his new career – the humanitarian space was very challenging – he faced mortar attack, vehicle bombs, suicide bombers and a high risk of kidnapping – and one location was evacuated to the airport under gunfire.

This episode provides a rare and insightful look into the realities of humanitarian work in some of the world’s most challenging conflict environments, and the personal toll it can take on those dedicated to helping the most vulnerable populations. Steve emphasises the importance of cultural understanding, building relationships with local staff, and maintaining mental health when living and working in these high-stress environments. Steve shares strategies for communicating, negotiating, and positioning the humanitarian role to be able to deliver aid effectively. The discussion also explores the challenges Steve faced in transitioning back to life in New Zealand after his humanitarian deployments, feeling unappreciated and struggling to find work that matched his unique experiences overseas.

Join Andrew, Josh and Steve for this episode on your favourite podcast platform!

Community organisations are so critical to disaster recovery efforts, and many organisations emerge during and directly after disasters. Following the destructive Marshall Fire in Colorado, one community member co-founded a community organisation to support disaster survivors. Empowered by her experience, she then ran for Public Office and became a Trustee on the Local Council in the town of Superior, Colorado.

Jenn Kaaoush joins Andrew and Josh on the show today to discuss how her experience as a resident impacted by the fire motivated her to become a voice for those impacted by running for public office. When the fire destroyed over 1,000 properties, she sprang into action, co-founding the Superior Rising community organisation to support disaster survivors. Jenn, a former diplomat and fourth-generation Army veteran, shares insights on the importance of communication, empathy and community organising in disaster recovery while reflecting on her own personal growth through the crisis.

This episode offers a unique perspective on disaster recovery, highlighting the power of grassroots community organisations as part of the emergency response and recovery efforts, and the potential for community leaders in disasters to consider taking on a different role to make a difference in their community.

Watch Jenn’s advocacy following the fire on CBS.

As climate change impacts our environment, communities might face a tough choice. Do they stay and accept a lower quality of life, mitigate the effects of climate change, or decide to leave?

This episode explores the complex relationship between climate change, disaster risk reduction, and human mobility. Andrew and Josh speak with Professor Mo Hamza who has been researching people movement for 35 years. Mo provides a clear distinction between disasters and climate change, and how individual vulnerability shapes perceptions and impacts, as well as the challenges of addressing the root causes of vulnerability.

Mo discusses how communities adapt to environmental changes through mobility both domestically and internationally. While international migration comprises a small portion of movement, it raises a range of challenges particularly for people leaving a location suffering environmental degradation. Listen to the episode to understand we can’t call those who move locations as ‘climate refugees’.

Mo Hamza is a Professor of Risk Management and Societal Safety at Lund University in Sweden and has led numerous projects with international development organisations including the World Bank, Asian Development Bank, United Nations agencies, the Swedish Red Cross, the Swedish Civil Contingencies Agency and many others. Mo has consulted across the world with a particular focus on the Middle East.

Learn more about Professor Mo Hamza’s research at Lund University.

When disaster manager Brenden Winder arrived in Christchurch after the earthquake, he found a city with destroyed buildings, chimneys fallen to the ground and windows blown in. The devastation was confronting. As aftershocks continued, rescue crews worked around the clock to pull people from the rubble.

In this episode, Andrew and Josh are joined in Christchurch by Brenden Winder, Head of Civil Defence and Emergency Management at Christchurch City Council. Brenden shares his story working as part of the massive recovery effort following the 2010 and 2011 earthquakes which struck the city. The conversation explores key aspects of coordinating the recovery, such as community involvement in decision making, housing and infrastructure planning, and navigating tensions around the property buybacks. Memorialisation and anniversary events are also discussed. Brendan shares how lessons from Christchurch informed his work providing demolition training to over 100 people after Nepal’s 2015 earthquake.

Brenden started his career in the Royal New Zealand Navy before working for adventure tourism company in Queenstown and then moving into emergency management. When the quake struck, Brenden was deployed to Christchurch and ended up staying to help with the clean up. He now manages all hazards in the city and outside of his day job has also travelled overseas to help other nations recover from major disasters.

Brendan is optimistic about Christchurch’s future resilience and growth. The city is modern, vibrant and more resilient to future earthquakes. Join Andrew and Josh on a walk around Christchurch with Brenden Winder on YouTube.