Jaishri Sanwal Bhatt is an Indian geologist and paleoclimatologist based at the Jawaharlal Nehru Centre for Advanced Scientific Research in Bangalore, where she combines scientific research with a strong commitment to public outreach, advocacy, and science communication. For more than twenty years, Sanwal’s work has centered on reconstructing past climate change and active tectonic processes through the study of cave records and other geological proxies, especially paleolakes and speleothems. Her research has spanned the Indian and Nepalese Himalayas, the Andaman Islands, and both the eastern and western coasts of India, engaging major questions related to earth systems, water security, and natural hazards. In this wide-ranging and engaging InterDialogue, we discuss deep geological time, the proposed nuclear energy transition in India, the value of interdisciplinarity and clearer scientific communication, Sanwal’s efforts to organize science outreach initiatives in rural India, and much more. Timestamps 2:22 – Sanwal’s background and introduction to geology 8:43 – Big History and the evolution of the Earth through geology 14:25 – Sanwal’s research 16:45 – Tracking historical precipitation patterns through sediment 21:10 – Connecting paleoclimatology to contemporary climate science 25:53 – Tracking and analyzing extreme events through rocks 29:07 – Comparing chronological dating systems 32:52 – Sanwal’s work with lake cores 37:34 – Tracking tsunami episodes in the Andamans 44:09 – Evidence of tsunamis in mangrove forests 49:00 – Local knowledge and community collaborations 52:32 – Nuclear energy transition in India and waste disposal 57:18 – Risks of geological repositories for nuclear waste 1:00:16 – Sanwal’s rural science outreach and education initiatives

Mariana Gómez Soto is a Colombian social anthropologist, environmentalist, and activist. She holds a BA in social anthropology with minors in geography and biology, a master’s degree in social anthropology, and a second master’s degree in holistic sciences from Schumacher College. Gómez has worked closely with Indigenous communities for many years and has led key intercultural initiatives through her roles at the Gaia Amazonas Foundation and as a leader within the North Amazon Alliance. She is the lead author of a recent chapter on socio-bioeconomics and connectivity published in an assessment report by the Science Panel for the Amazon. Gómez also played a central role in founding the Amazonia Conectada coalition, which brings together the North Amazon Alliance, the Science Panel for the Amazon, RAISG, and Aguas Amazónicas—organizations with distinct areas of expertise united by a shared commitment to sustaining the Amazon’s terrestrial, biocultural, hydrological, and climatic interconnectivity. This wide-ranging InterDialogue opens with a discussion on dynamic, context-based frameworks for building and scaling a sustainable, circular bioeconomy in the Amazon. The conversation then turns to the importance of Amazonian connectivity, the evolving priorities of the North Amazon Alliance and Amazonia Conectada, and the critical role of interdisciplinary and intercultural education and collaboration in safeguarding the region’s future. Timestamps 0:00 – Introduction 1:42 – Defining Bioeconomics and Socio-Bioeconomy 5:44 – Envisioning a Circular Bioeconomy in the Amazon 9:52 – Developing Socio-Bioeconomic Trade Infrastructure 12:09 – Challenges of Modeling Bioeconomy in Practice 14:45 – Consequences of 2026 Elections for the Amazon 16:10 – Bioeconomic Product Identification and Market Integration 22:47 – Experiences Coordinating the North Amazon Alliance 24:27 – Analyzing Connectivity in the Amazon 31:47 – Hydrological-Terrestrial Interconnectivity 34:24 – Developing a New Methodology for Measuring Forest Connectivity 37:26 – Coordinating with Policymakers and the Public 44:11 – Experiences at COP30 49:49...

Traditional Indigenous territories are complex, adaptable, and resilient socio-ecological systems that contain the majority of the world’s biocultural diversity. But can Indigenous Peoples play a leading role in both combating climate change and preventing the next pandemic? Right now, there is a fair amount of rhetoric being flung about connecting, comparing, and contrasting the COVID-19 pandemic to climate change and the “sixth extinction” of biodiversity. In Indigenous worldviews—as well as in complex systems science—all these crises represent “maladies” caused by the profound unbalancing of our interconnected living planet. From his home in self-isolation in the Colombian Amazon, Koreguaje Indigenous leader Juven Piranga recently told me: “Our Elders agree that Mother Earth is causing this pandemic to clean the present state of the world, to rid us of the bad energies, and to counteract the pervasive greed and exploitation and disrespect. White people come here to our territories to exploit Mother Earth, for gold and timber and much more, and this affects everyone, and it is our responsibility to protect Mother Earth, so we are also punished. We need to reinforce our autonomy to stop these practices and restore balance.” While still not garnering nearly as much attention as it deserves, Indigenous Peoples’ role as partners in climate change mitigation is fairly well established in research, and gaining more attention internationally from both policymakers and the general public. The “Guardians of the Forest” paradigm recognizes Indigenous communities as stewards of the immense biodiversity and “ecosystem services” (or better, ecosystem functions) of tropical forests. Globally, the forested territories of Indigenous communities store at least 300 billion metric tons of carbon, above and below ground. Mounting evidence has shown that Indigenous communities with secure rights and tenure to their collectively held lands have extremely low rates of deforestation and land degradation. Additionally, while...

When I decided to become a soil microbiologist, I knew that the soil could be the most diverse environment in the world, but there was minimal information regarding how extremely diverse Amazonian soils are. Today we know Amazonian soils contain more than 700 different insects and arachnids, including around 180 different species of ants and more than 80 different species of termites, five different families of earthworms and around 40% of the world’s diversity of a group of beneficial fungi denominated arbuscular mycorrhizal fungi. Most Amazonian soils are acidic with low fertility. For many years researchers, colonists and explorers believed that human populations in the Amazon region were limited to small groups with simple social organizations that live in a simple manner with little or no technological developments. However, the Amazon region has been inhabited by many ancestral indigenous communities (an approximated 10 million people before the discovery of America by Europeans) who lived in complex and populated settlements with thousands of people. They needed to produce (through hunting, fishing and cultivation) enough food to sustain these settlements, much like the indigenous communities of today. But a common denominator between ancient and contemporary indigenous communities is that they do not perceive low-fertility Amazonian soils as a constraint for food production. Most productive soils are rich in minerals that are nutrients for plants, and these minerals come from parental rocks that were also rich in these minerals. The parental material from which Amazonian soils originate are rich in kaolinite, which is a clay poor in nutrients, so the mineral portion of Amazonian soils does not supply nutrients to plants. Most of the phosphorus, which is essential for plants to elaborate proteins and energy, comes from organic matter and not from the mineral portion of soils. The acidity of Amazonian soils also...