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ASH CLOUD

Ash Sweeting

This is series of conversations discussing global food sustainability with guests who bring a deep understanding of the environmental and cultural challenges facing our society and creative ideas on how to address them.

  • 80 episodes
  • Updated June 16

Episodes80

  • Mar 26, 2025 · 1 hr 3 min

    The link between obesity and poverty, rising obesity, and how GLP-1s are changing the game with Jack Bobo UCLA

    In this episode I am exploring the rapidly growing rates of obesity globally, the rapid rise in the use of GLP-1s or obesity drugs, how these are impacting our food systems, and how obesity and poverty seem to be linked. In the US around 10% of all Americans are either using GLP-1s or have tried GLP-1s, with early data showing a 5-10% decrease in food spending and a significant change in the foods people are purchasing. Yet, it's only the wealthiest that can afford these drugs. Today we are joined by Jack Bobo, Director of the Rothman Family institute for food studies at UCLA where he is diving deep into how GLP-1s are reshaping the food system, consumer behavior, and human health. Obesity rates are skyrocketing globally. In the US 42% of the population is obese and three quarters are overweigh. Australia is hot on the heels of America and much of the world is moving in the same direction. The cost of the is also growing. In the US obesity and metabilic disease are costing about $1 trillion a year and that figure globally it between $10-12 trillion. Yet it’s complicated, soda consumption and sugar consumption in the US are at 30 year lows, all while obesity is at an all time high. Sugar taxes have let to high income people losing weight and lower income no losing weight. Which follows a general trend that with almost every intervention, healthy people get healthier and unhealthy people don’t. Jack is also the author of "Why Smart People Make Bad Food Choices" Send us Fan Mail

  • Mar 17, 2025 · 40 min

    Sustainable Livestock Transformation Initiative with Aimable Uwizeye UNFAO

    Today we are joined Aimable Uwizeye, Livestock Policy Officer for the Food and Agriculture organization of the United Nations where he is part of the team that implements the Sustainable Livestock Transformation initiative within the Animal Production and Health Division. Increasingly the impartance of animal health is being identified as a key aspect of improving sustainbility and reducing emissions. Aimable's mission is to promote global change towards a sustainable livestock sector by tackling climate change, reducing methane emissions, enhancing biodiversity, and reducing nitrogen and phosphorus pollution. Join me in this journey to create a more sustainable and resilient future for our planet. Send us Fan Mail

  • Mar 7, 2025 · 1 hr 8 min

    Capitalizing on opportunity with Jason Strong, former Managing Director Meat and Livestock Australia

    The Australian livestock industries now produce high quality product, that is full tracebale, quality assured, with real time market information coming from a sophisticate supply chain that sells into high quality markets with preferential access including 16 FTAs. This has transitioned from an absolute commodity industry with only one free trade agreement, no traceability, national ID system, limited market information and a disconnected supply chain just 30 odd years ago. Today we are joined Jason Strong, a long time advocate and leader in the Australian livestock industries including as the former Managing director of Meat and livestock Australia and former CEO of the AACo, Australia’s largest integrated cattle and beef producer, and is the oldest continuously operating company in Australia. Jason sees the greatest opportunity is making progress in areas that are efficiency productivity driven but has other knock on benefits, including the reduction of enteric emissions with the methane emissions from the base cow herd being the greatest challenge and poor reproductive performance being crucial to improving emissions intensity from these cows. Trust is the most critical thing to capitalism on these opportunities. Send us Fan Mail

  • Feb 25, 2025 · 53 min

    Breeding for sustainable livestock, how genetic selection can provide significant and permanent reductions to livestock emissions with Matthew Cleveland

    Humans have been selectively breeding animals since before Roman times. Modern technologies and tools including genomics and artifical intelligence has hugely increased the rate of progress. Increasingly, sustainability traits such as the enviromneatl footprint of production are being included in breeding programs in addition to productivity, efficiency, and profitability traits. Today we are joined Matthew Clevlend, a geneticist who leads sustainability at ABS Global across their beef and dairy genetic improvement programs. Early indications are that the heritability of methane emissions are between 20-30% which is similar to many traditional production traits. In addition, these improvements are both cumulative and permanent, and applicable to production systems across the Global North and Global South. Send us Fan Mail

  • Jan 28, 2025 · 45 min

    Challenging meat politics and promoting regenerative agriculture with Sparsha Saha, Harvard University

    Political scientist Sparsha Saha from Harvard University joins us to challenge the status quo in meat politics. How can a sector so vital be so overlooked? Sparsha shares groundbreaking insights, exposing the unusual political dynamics surrounding animal welfare and the unexpected urban-rural divide on climate policies related to meat consumption. We grapple with the low prioritization of food and water in political discourse and the urgent need for heightened awareness in tackling ecological crises. Our conversation takes a deep dive into the path toward building inclusive strategies in the plant-based and regenerative agriculture sectors. By bridging gaps across ethical and expertise boundaries, we uncover how collaboration can drive meaningful social progress. Sparsha and I discuss the public's yearning for genuine moral leadership on critical issues like food and water, and consider how emerging leaders, particularly younger ones, could resonate with people's fundamental needs. Furthermore, we examine how cultural expressions, especially music, can capture our deep-rooted connection to the land. We turn the spotlight on the pressing challenges and potential solutions within the global food systems. Recent crises, from food shortages to geopolitical tensions like the Ukraine war, have emphasized the vulnerability of these systems. Sustainable practices such as regenerative agriculture and mindful water usage in farming are more essential than ever. We also introduce the "eat less but better" concept, advocating for reduced animal product consumption to enhance biodiversity and sustainability. Sparsha and I underscore the socio-economic struggles faced by vulnerable communities dependent on unsustainable food systems, urging systemic policy changes to foster security and equity. Send us Fan Mail

  • Jan 24, 2025 · 1 hr 2 min

    Incentivizing the least productive farmers to change with Jason Clay, World Wildlife Fund

    The least productive 10-20% of producers are causing 60-80% of the environmental impacts but only produce 5% of the food. Incentivizing these farmers and ranchers to change can significantly improve the sustainability of our food systems with minimum impact on global food production. Today I am joined by Jason Clay from WWF who focuses on working with the private sector to improve supply chain management especially addressing habitat, biodiversity, soil health, irrigation, effluent, and green house gases. Jason leads the Markets Institute to improve sustainability in internationally traded food and soft commodities, known as Codex Planetarius. We need to move away from looking at averages. With the largest 10 commodites we are finding there are three to five production systems globally and the difference between the most damaging decile and most sustainable decile is 10x. Between any two of the 5 production systems it can be 50 or 100x. Huge reduction in the environmental footprint of these systems can be achieved by addressing the bottom. The culture of eating animal protein is engrained in millions of years of evolution. With over 400 million Chinese people raised from poverty this century and a further 1 billion Indians being taken out of poverty the increased demand for animal proteins is not going to disappear. Send us Fan Mail

  • Jan 13, 2025 · 55 min

    Irrigation is colonising fresh water with Bruce Lankford, University of East Anglia

    The 350 million hectares of global irrigation consume 3-4 Mississippi’s worth of fresh water every day. This volume of fresh water used for Irrigation is continuing to increase, especially across the global south, exacerbating the challenge of how we produce more food with less water. Today we are joined by Bruce Lankford, who has been working on Water and Irrigation Policy across the developed and developing worlds for over 30 years. In a recent blog post Bruce wrote about how Irrigation is colonising water and is being colonised; on research and teaching gaps in irrigation. He concluded that because many consultants, analysts, researchers, research projects, funders and decision-makers are not fully interrogating irrigation as a complex system, irrigation is colonising freshwater, and it is being technically, conceptually and financially colonised. Send us Fan Mail

  • Dec 17, 2024 · 1 hr 2 min

    Wolves reduce vehicle deer collisions with Nick Parker Hoover Institution

    Economics, markets, and policy all have significant impacts on human behavior and decision making. Nick Parker is an environmental economics professor at the University of Wisconsin-Madison and the Hoover Institution who has been studying the human interaction with wolves, and especially the indirect effects wolves have on environments they live, to examine if it was possible for wolves to actually benefit humans and reduce threats to human lives and property. He found that the reintroduction of wolves into Wisconsin and other US States led to a 25% decrease in deer vehicle collisions. The research suggests that two thirds of this reduction is due to how wolves change deer behaviour rather than just eating deer. The wolves prefer to travel along strait corridors such as roads, creeks, and railway lines leading to fewer deer in the vicinity of roads. The benefits from wolves was found to be 63 to one when the costs associated with human mortality, injuries, and damage to vehicles was compared to the compensation payments the state was making to ranchers for livestock predation. However, the impact of wolves and deer populations on communities is actually far more complex than just vehicle collisions and predation of livestock. Deer also eat farmers crops, damage gardens, and damage timber, and they can spread Lyme disease. So deer vehicle collisions are only one aspect of the damages caused by over abundance of deer. Wolves also help control subservient predators like coyotes and foxes and and compete with mountain lions and bear. In the US the number one cause of livestock damage is from coyotes. Large deer populations can also provide economic benefits through hunting. All these indirect effects also feeds into the cost benefit analysis question. Economics is a powerful tool for optimizing natural resource use and it is possible to set up a system where those who benefit compensate those who bear the cost. “Is it possible to set up a system that those who benefit compensate those who bear the cost. Because, as an economist, I think that's the that's the gold standard for determining the optimal level of any natural resource use that's both the asset and a liability. Like wildlife is the asset and a liability. Some people want more, some people want less. Those who want more should pay for it, and those who bear the cost should be compensated in some way.” The big challenge is that policy frequently focuses on the direct effects with little consideration of the indirect effects. Nick Parkers’s study on impact of wolves on deer vehicle collisions shows that for policies to be effective the whole system needs to be understood as the secondary, and tertiary effects and how these can be more important than the primary effect. “If you want long term resource conservation and sustainability, we need policies that cause users of those resources to treat them like they're the owner. Now we might not want to convey ownership, and might not be practical or politically feasible, or even socially desirable, for individuals and groups to own every natural resource. But if we have have policies that encourage them to act as if they own it, then the incentives are going to be lined for long term.” You can listen to my conversation with Nick parker here. Nick Parker is the Ilene and Morton Harris Senior Fellow (adjunct) and the Hoover Institution and the Anderson-Bascom Professor of Applied Economics at the University of Wisconsin-Madison. Send us Fan Mail

  • Dec 16, 2024 · 1 hr 5 min

    The politics and science of addressing the 2050 global demand for protein with Alison Van Eenennaam UC Davis

    Low- and middle-income countries house 76% of the global cattle herd, and by 2050 will be home to 8 billion people. They are the projected epicenter of both increased animal source food demand, and livestock-related emissions. The most promising approach to address this demand while limiting greenhouse gas emissions is to improve the efficiency of livestock production systems in sub-Saharan Africa and South Asia through interventions in genetics, feeding and health. Boosting livestock productivity can improve both food security and producer incomes. Alternative proteins may play a limited role in addressing projected demand, but currently most companies are located in high-income countries Moreover, given the multifaceted roles that ruminants play in global agri-food systems, the social, economic and economic trade-offs associated with replacing meat and milk with alternative proteins must be evaluated holistically. Today we are joined by Alison Van Eenennaam from UC Davis who is leading the animal Genomics and Biotechnology Program is to provide research and education on the use of animal genomics and biotechnology in livestock production systems. Alison recently wrote this paper outlining the challenges alternative proteins face in meeting the increased demand across the Global South. Send us Fan Mail

  • Nov 5, 2024 · 58 min

    Artificial intelligence is neither artificial nor intelligent? with Aidan Connolly

    Our food systems are orders of magnitude more complex than other sectors of our economy so how can tools such as Artificial intelligence help farmers across the world make better decisions to improve the sustainability and productivity of our food systems. Today we are joined by Aidan Connolly a animal agtech entrepreneur, investor, and author of The Future of Agriculture who has spend his career working on agricultural innovation. Send us Fan Mail

  • Oct 28, 2024 · 1 hr 1 min

    Biosecurity with Andy Sheppard CSIRO

    Today Ash Cloud is partnering with CSIRO to bring you Andy Sheppard, the Chief Research Scientist Biosecurity at CSIRO where he leads efforts to protect Australia, it’s neighbours, and trading partners from plant, animal and human pests and disease threats. Building local and global partnerships to understand the biology of the threats across their native and invaded range so intervention opportnities can be implemented is a key part of his work. Andy is also the Co-Executive Director of Department of Agriculture, Fisheries and Forestry and CSIRO Catalysing Australia's Biosecurity Initiative. You can listen to our conversation here. Send us Fan Mail

  • Oct 17, 2024 · 49 min

    Climate change and national security with Sherri Goodman - International Military Council on Climate & Security

    The US military has recognized climate change as a national security threat for decades our guest today, Sherri Goodman, has been credited with educating a generation of US military officers and government officials about the complex interactions between climate change and national security. She is Secretary General of the International Military Council on Climate & Security and the author of Threat Multiplier: Climate, Military Leadership, and the Fight for Global Security. I recently spoke with Sherri about her 30 odd years experience working on the nexus of climate and security, including the risks posed by climate change and the many indirect ways they can be manifested, the challenges in changing the mindset at DoD around how they think about climate change, what can be learned from her experience, and opportunities to intervene. You can listen to our conversation here. Send us Fan Mail

  • Sep 24, 2024 · 48 min

    Climate related violence, a messy marriage of climate stress and poor governance with Peter Schwartzstein Environmental Journalist

    The intersection between climate change and armed conflict is complex. For those who have not witnessed the difference between the devastation and social upheaval that results from war compared with any other form of social upheaval it is almost impossible to explain. This is why I see great importance in further understanding these intersections. Climate related violence is a messy marriage of climate stress and poor governance. ISIS profited from collapsing agricultural positions to bolster its ranks in Iraq and Syria. The recruitment rate of jihadis was three times higher from villages reliant solely on rain than from similar villages with access to irrigation water. The developed world is not immune, above and beyond the global impacts of migration it has been documented that violence against women in Greece appears to increase almost in lockstep with summer temperates. In the United States, 85% of the mass shootings that accrued in 2022 took place between the June and September with the physiological changes unleashed by higher temperatures appearing to be a determining factor. The migration stories that make the headlines are only the tip of the iceberg. These are based on the 10% of people that flee their homes due to conflict and migrate internationally. The other 90% impact the towns and cities within their countries. However, as it's generally the best educated and wealthiest people that can actually afford to leave this also undermines the governance and financial security of the impacted villages further undermining these societies. The urban rural divide a growing issue globally. ISIS recruitment around Mosul was facilitated by the growing disparity between agricultural and urban livelihoods that led to some of the greatest concentrations of ISIS recruits. The proximity to the city led ensured that villages were very conscious of this growing disparity making them easy targets for the ISIS recruiters. Peter Schwartzstein is an environmental journalist who has reported on water, food security, and the conflict-climate nexus across some 30 countries in the Middle East, Africa, and occasionally further afield. Peter is a Global Fellow with the Wilson Center's Environmental Change and Security Program. The Heat and The Fury, is published in September 2024. Send us Fan Mail

  • Sep 19, 2024 · 42 min

    How the livestock methane conversation has evolved with Frank Mitloehner UC Davis

    Depending on who you speak with cattle can be vital to the sustainability of our food systems and our ability to provide health nutrition to humanity or they can be one of the largest sources of climate pollution. The culprit in this debate is methane, especially enteric methane emissions that is derived from the foregut of all ruminants including cattle. Frank Mitloehner is the Director of the UC Davis Clear Center that researches the intersection of animal agriculture and the environment and leads communication efforts across the complex interactions between the environmental health, human health, our food systems, and livestock. Frank’s work has significantly focused on methane emissions. I recently caught up with Frank to hear his perspective on how the conversation around methane has evolved, including the increasingly passionate positions on the role of ruminants in our food systems that are being advocated by different groups focused on addressing climate change. It is widely accepted that reducing methane emissions is the emergency brake when it comes to mitigating warming, with a reduction of methane by 20, 30, or 40% having a significant impact due to the high warming potential of methane and it's rapid natural breakdown in the atmosphere. Where there is much more disagreement among those advocating for methane reduction is which sectors to target most urgently for methane reductions with oil and gas, waste, livestock, and domestic leaks being the most frequently discussed. Where there is no disagreement is the need for increased funding on research and innovations to reduce livestock methane. Send us Fan Mail

  • Sep 13, 2024 · 54 min

    Regenerative ranching with Rich Bradbury

    Regenerative ranching has recently gained traction across the main stream media but the idea of using livestock to mimic nature and managing a landscape holistically was largely led by Allan Savory from the 1980s. Rich Bradbury' parents attended the Savory Institute in the 1980's which was when he was first exposed to the holistic approach that Allan Savory brings to ranching. I recently caught up with Rich to hear how this has impacted his thinking and the way he manages his ranch to this day. Send us Fan Mail

  • Aug 30, 2024 · 1 hr 5 min

    Nitrogen 2.0 with Eric Davidson University of Maryland Center for Environmental Science and Spark Climate Solutions, and Charles Brooke from Spark Climate Solutions

    Nitrogen is absolutely essential for all forms of life, plants, animals and microbes. Nitrogen is the basis for making amino acids, and amino acids are the basis for making proteins, enzymes. The historic nitrogen system was balanced and based on microbial activity transforming atmospheric nitrogen into soluble forms usable by plants and microbes. Eric Davidson's has been working to transform our food systems through better understanding terrestrial nutrient cycling, cycling, greenhouse gas emissions from soils, global biogeochemical cycles, and how they impact sustainable agriculture. Charles Brooke has been working to accelerate the rate of action and innovation in reducing the climate impact of livestock production. He leads Spark Climate Solutions livestock enteric methane mitigation program. The modern nitrogen system is based on the use of synthetic nitrogen fertilzers produced through the energy intensive Haber-Bosch process developed just prior to World War I to manufacture munitions. The impact of this synthetic nitrogen has spread far beyond conflict. Synthetic nitrogen has enabled our modern food systems to produce enough food to feed 8 billion people. It has also resulted in widespread nitrogen pollution in water ways and ever increasing levels of the potent greenhouse gas nitrous oxide. Synthetic fertiliser production has been so successful that today 50 - 60% of all the nitrogen in human bodies in humans actually comes from Haber-Bosch processes. From a warming perspective nitrous oxide (or N2O) is about 270 times more potent than is carbon dioxide. However, unlike CO2 where levels are somewhat plateauing, N2O levels continue to rise. The use of nitrogen fertilizer is hugely inefficient. Half of all fertilizer put on the ground is lost. Additional losses occur when plant proteins are fed to animals prior to human consumption. Nitrogen 2.0 is focused on reducing nitrogen wastage and pollution, and increasing the circularity of nitrogen use. The three components are: Feeding nitrogen directly to livestock Decreasing the nitrogen required by and provided to crops Increasing the recycling of nitrogen in manure back into our cropping systems Eric Davidson is Professor of the Appalachian Laboratory of the University of Maryland Center for Environmental Science. He is also a Principal Scientist at Spark Climate Solutions. His most recent book Science for a Green New Deal; Connecting Climate, Economics, and Social Justice was published by Johns Hopkins University Press in 2022. Send us Fan Mail

  • Aug 6, 2024 · 42 min

    Tripling the impact of methane reducing feed additives with decentralized AI with Yaniv Altshuler MIT and Metha AI

    The efficacy of methane reducing feed additives constantly varies between cows and herds because the rumen microbiome is constantly changing. Certain feed additives that worked really well at that one given her may stop working, or the other way around. Feed additives that were not working can become effective. Using AI based on the genome sequences within the microbiome so that the right additive is used at the right time can triple the impact of feed additives. Yaniv Altshuler has been working on Artificial Intelligence for the over 20 years focusing on decentralized and scalable AI methods. He is a researcher at MIT and the founder and CEO of Metha.ai where he is using decentralized AI algorthims that are ubiquitous across nature to predict the efficacy of methane reducing feed additives based on the cows microbiome. More details on how AI can increase the efficacy of feed additives can be found in Yaniv's white paper here: From Microbes to Methane: AI-Based Predictive Modeling of Feed Additive Efficacy in Dairy Cows Yaniv holds a PhD in Computer Science, and is the author of over 70 scientific papers and 15 patents. He is also the author of several books including "Security and Privacy in Social Networks" and "Applied Swarm Intelligence". Send us Fan Mail

  • Jul 13, 2024 · 36 min

    Leading climate smart agriculture policy development and implementation with Secretary Karen Ross - California Department of Food and Agriculture

    California has been leading efforts to implement climate change policy since Governor Schwarzeneger signed the Global Warming Solutions Act in 2006 to begin the transition to a carbon neutral economy with food and agriculture are a key component of California’s strategy. Agriculture sits right in the middle of the climate debate, agriculture is a significant emitter and that needs to be acknowleded. Agriculture also has the potential be big part of the solution and the conversation needs to evolve beyond blame into how can we work together to address this ciritcal issue. Secretary Karen Ross has been leading California Department of Food and Agriculture since 2019 and she is global leader in sustainable and climate smart agricultural where she has been driving progressive food climate policy in California, leveraging the state’s innovative start up culture to create new technologies, working to build resiliant local food systems, and building global partnerships that are critical to addressing cliamte change at scale. California has signed climate smart agriculture MOUs firstly with the Netherlands, followed Denmark, Israel, New Zealand, Australia, Chile, Mexico, and Vietnam. “Leadership is not just talking to who we know and feel comfortable with. It's the willingness to reach out and to truly listen. And to first understand if I want to be understood.” Looking towards the future we also need to ask how can we grow food in a changing climate both in highly developed econmoies such as California and also across the Global South. The vast majority of farmers are small a subsustance farmers, frequently living in povery and food insecurity. These people also make up the vast majority of malnourished people globally. “Hunger drives desperation and creates unrest. Look at the migration patterns that are happening on a multitude of continents because of drought. There's not water to grow the crops. There's not the ability to feed the animals which are their sole income and ability to feed themselves." Send us Fan Mail

  • Jun 21, 2024 · 58 min

    Into the clear blue sky, the path to restoring our climate with Rob Jackson Stanford University

    Rob Jackson is a climate scientist who has been leading global efforts to reduce millions of tons of greenhouse gas emissions and improve human health, safety, and air and water quality. Methane emissions are a major focus of Rob’s work as there is nothing else that gives as much power to slow global warming over the next decade or two. Rob’s new book, "Into The Clear Blue Sky” the path to restoring our atmosphere is being released at the end of July by Simon & Schuster. In the book Rob tells the story of the people creating and driving some of the boldest and most impactful climate solutions under development and what motivates and inspires these people to dedicate their careers to addressing climate change. Rob Jackson is the Chair of the Global Carbon Project, a Senior Fellow at Stanford’s Woods Institute for the Environment and Precourt Institute for Energy, and a professor of earth science at Stanford University. Send us Fan Mail

  • Jun 8, 2024 · 42 min

    Catalysing industry, community, and government to achieve Zero Net Emissions with Richard Health - Zero Net Emissions from Agriculture CRC

    The Zero Net Emissions from Agriculture Cooperative Research Council (ZNE-Ag CRC) is a key component of achieving the commitment to achieve net zero emissions by 2040. The CRC comprises of 73 partenrs who have committed $AU87 million in cash which is matched by the Austrlain Federal Government. This becomes a $AU300 million program when in kind contributions are included. Richard Heath is the CEO of the ZNE-Ag CRC who brings decades of experience across research policy and hands on farming. I recently caught up with Richard to hear more about the pans for the ZNE-Ag CRC. You can listen to our conversation here. The ZNE-Ag CRC has four pillars that will foster collaborative researtch that includes industry partners and farmers to adress the key opportunities for emissions reduction across australian agriculture. Given the nature of food prodiuction across australia enteric methane reduction is the number one priority. 1: Low-emissions plant solutions Focused on reducing nitreous oxide and carbon diaoxide emissions across acre cropping, horticulture, and improving pasture species and grazing management to reduce enteric emissions. 2: Towards methane-free cattle and sheep Focused on breeding for lower emissions, imporved grazing management and delivery of feed additives to grazing animals. All of which require greatly expanded methane monitoring capitcty to be implementable. 3: Whole-farm and mixed enterprise systems analysis As there will be no silver bullet this is pillar will integrate all the learnings to provide farmers with the guidelines and tools to implement lower emissions management practices and technologies 4: Delivering Value from Net Zero This pillar will be integrating renewable energy and circvular economy solutions into autralian farming systems Send us Fan Mail