Professor Navid Moheimani is a leading algal biotechnologist at Murdoch University and a global authority on microalgae, working at the forefront of sustainable innovation across energy, agriculture, and environmental management. His research explores how some of the smallest organisms on Earth, algae, can solve some of our biggest challenges, from producing oxygen and biofuels to transforming waste into valuable resources.

Through pioneering work in algal cultivation and large-scale applications, Professor Moheimani is redefining how we view waste, developing “waste-to-profit” systems that convert agricultural and organic waste into renewable energy, high-protein biomass, and sustainable products. His research spans everything from wastewater treatment and carbon capture to the future of biofuels, bioplastics, and even algae-powered infrastructure.

By combining cutting-edge science with real-world application, his work sits at the intersection of climate solutions, food security, and circular economies, positioning algae as one of the most powerful and overlooked tools for building a more sustainable future.

In this episode, we’re joined by Dr Rochelle Steven, Lecturer in Environmental and Conservation Science at Murdoch University, one of Australia’s leading conservation scientists working at the intersection of avian ecology, biodiversity, citizen science, and human–wildlife interactions.

Before joining Murdoch, Rochelle held a series of highly respected roles across Australia’s conservation sector, including Species Conservation Project Coordinator at WWF-Australia, where she worked on threatened species management and community-led conservation, as well as a postdoctoral research role with the University of Queensland’s Threatened Species Recovery Hub, focused on citizen science and species recovery.

With a PhD in bird conservation and a career spanning academia, conservation policy, and public engagement, Rochelle brings extraordinary insight into the science of birds, ecotourism, and the human behaviours shaping our natural world.

From the decline of migratory shorebirds and the power of citizen science, to the hidden impacts of recreation on wildlife and the ethics of conservation, this is a powerful conversation with one of the country’s most respected voices in environmental science.

In this episode, Winthrop Professor Marc Tennant, Chair of the Academic Board at The University of Western Australia, is one of Australia’s leading voices in public health dentistry. With over three decades dedicated to tackling health inequality, Marc has helped transform how dental care is delivered, especially for rural, remote, and disadvantaged communities across Australia.

From teaching generations of dentists since the 1980s to driving the expansion of regional dental schools, his work has had a direct impact on access to care, shifting outcomes for some of the most vulnerable populations.

But this conversation goes far beyond policy.

We dive into the fascinating science of teeth, the surprising power of fluoride, and how something as simple as brushing your teeth can prevent serious disease. Marc unpacks the hidden link between oral health and socioeconomic inequality, shares practical tips that could save your teeth, and reveals the future of dentistry.

This is a conversation about more than teeth, it’s about health, access, and the systems that shape our lives.