Sustainability In Your Ear

Cattle are one of the most consequential climate problems hiding in plain sight on the dinner table. Livestock are responsible for roughly 14.5% of global greenhouse gas emissions, according to the United Nations Food and Agriculture Organization, and cattle alone account for about 65% of that sector's output. Most of it doesn't come from manure or land use — it comes from inside the cow. Approximately one billion cattle on the planet burp around 3.7 gigatons of CO₂-equivalent emissions annually, more than the aviation and shipping industries combined.

A growing number of researchers and companies are focused on a deceptively simple appr...

Forests are vital for people everywhere. They cover about 4.14 billion hectares, roughly a third of the world’s land, and store 714 gigatons of carbon. They also support 80% of land-based biodiversity. However, we are losing 11 million hectares each year to deforestation, and the World Bank expects demand for forest-based products to rise by 400% by 2050. Many industries, from construction to textiles and automotive, are turning to wood fiber to replace fossil-based materials. Yet, a 2023 Circularity Gap Report found that over 90% of materials entering the global economy come from nature and end up in landfills. This approach is not sustainable. If we do no...

We already have the technology to decarbonize buildings, and many pilot projects have shown it works. So why hasn’t progress toward net zero moved faster? Colin Mangham believes it’s because we’re still using outdated business models to promote new solutions. Colin is the Chief Experience Officer at the US Green Building Council California and leads its Net Zero Accelerator, the first program focused only on net-zero innovation for buildings. Since 2019, the accelerator has helped over 100 companies in a six-month program that stands out by putting real technology pilots into actual buildings with dedicated partners, then tracking the result...

The U.S. waste management industry moves more than 290 million tons of municipal solid waste each year. This is a potential trillion-dollar market, but much of the work still relies on paper tickets, clipboards, and spreadsheets. About 10,000 independent haulers handle a large share of collection and materials transfer in the U.S. In this business, a single truck costs $300,000, and profits depend on efficient routes. Most haulers do not have access to the digital tools that other logistics industries have used for years. Mike Marmo, CEO and founder of CurbWaste, is building a new operating system to change this. His...

Each year, over 11 million metric tons of plastic end up in the ocean, which is like dumping a garbage truck full of plastic every minute. For years, we’ve known that marine animals eat this debris, but no one had measured exactly how much plastic it takes to kill them. Dr. Erin Murphy, who leads ocean plastics research at the Ocean Conservancy, is the principal author of a major study published in the Proceedings of the National Academy of Sciences. Her team analyzed more than 10,000 necropsies from 95 species of seabirds, sea turtles, and marine mammals worldwide. Earth911’s summary describes this...

Subscribe to receive transcripts by email. Read along with this episode.

Every gallon of wastewater flowing through a municipal sewer contains recoverable energy, nutrients, and water—assets that the linear "flush and forget" model has long treated as problems to dispose of rather than value to recapture. Meet Kevin Shafer, who has spent more than two decades proving otherwise. As executive director of the Milwaukee Metropolitan Sewerage District (MMSD) since 2002, he's transformed an agency once mocked as a symbol of government waste into a national model for sustainable infrastructure, and last year, Veolia designated it as America's first "eco...

Subscribe to receive transcripts by email. Read along with this episode.
'
Global investment in the energy transition reached $2.2 trillion in 2025, up 5% from the previous year despite political headwinds intensified. Peter Fusaro has watched this market evolve from a niche curiosity into a systemic financial concern. As founder of the Wall Street Green Summit, he's spent a quarter century connecting capital to climate solutions. This year's summit, the 25th in its history, will take place on March 10 and 11 in New York. This critical conversation arrives at an historic inflection point: insurance companies are withdrawing from climate-vulnerable states, AI d...

Read a transcript of this episode. Subscribe to receive transcripts.

What we call waste is really just misallocated feedstock—raw materials waiting to be cycled back into the next generation of products and packaging. According to research by the World Economic Forum and United Nations Development Programme, the circular economy could unlock $4.5 trillion in new global value by 2030, and investors are racing to capture part of that opportunity. Meet Elizabeth Blankenship-Singh, Director of Innovation at Overlay Capital, an Atlanta-based alternative investment firm whose Waste and Materials Fund is backing both early-stage materials innovators and later-stage recycling operations with es...

Read a transcript of this interview.

Amazingly, the same Congressional bill that gutted residential clean energy tax credits also led to a major breakthrough in financing home geothermal systems. Dan Yates, CEO of Dandelion Energy, explains how the Big, Beautiful Bill introduced changes that, for the first time, allow third-party leasing of residential geothermal systems. He shares why this policy change could help ground-source heat pumps grow the way leasing helped rooftop solar. Geothermal heating and cooling is four times more efficient than a furnace and twice as efficient as air-source heat pumps. Yet only about 1% of U...

Subscribe to receive transcripts by email. Read along with this episode. 
The ocean provides half the oxygen we breathe, absorbs 30% of our carbon emissions, and helps control the planet's climate. By 2030, it's expected to support a $3.2 trillion Blue Economy. Yet 70% of proven ocean solutions, such as coastal resilience, coral restoration, and marine pollution cleanup, never move past the pilot stage. These projects often win awards and get media attention, but then stall because funding systems don't connect working ideas with the cities, ports, and coastal areas that need them. Stewart Sarkozy-Banoczy, co-founder and ocean lead at Okhtapus, wants to c...

Subscribe to receive transcripts by email. Read along with this episode.

For 15 years, the Dallas-based climate conference the EarthX conference has created space where fossil fuel executives and environmental activists, Republican appropriations chairs and Democratic climate hawks, find common ground. The organization targets three core stakeholders: the corporate world, policymakers, and investors seeking startups where environmental solutions are baked into the bottom line. Peter Simek, EarthX’s CEO, explains how reframing climate action around shared values—stewardship, economic opportunity, and love of the land—unlocks support that crisis messaging alone cannot reach.

The doom story doesn’t sell, Sime...

Subscribe to receive transcripts by email. Read along with this episode.

The raw material for a $2 trillion circular economy is already flowing through recycling facilities. But how do we capture and use it? Rebecca Hu-Thrams, co-founder and CEO of Glacier, is deploying AI-powered robotic sorters at material recovery facilities (MRFs) across the country, processing recycling for one in 10 Americans. Her robots use computer vision trained on more than 3 billion images of waste to identify and sort over 70 different materials—picking 45 items per minute, 24/7, in conditions that would exhaust or injure human workers. As much as 80% of what Americans pu...

Subscribe to receive transcripts by email. Read along with this episode.Americans dispose of approximately 1.3 billion gallons of used motor oil annually, but only about 800 million gallons get recycled, and most of that is burned as fuel rather than re-refined into new oil. The plastic packaging oil comes in is more problematic: most curbside programs won't accept them because residual oil contaminates other recyclables. What happens when the companies that make motor oil embrace extended producer responsibility (EPR) laws that require recycling the oil and the containers it comes in? David Lawes, CEO of the Lubricants Packaging Management Association (LPMA...

Read along with our transcript.

What if the solution to winter's infrastructure corrosion and environmentally benign home sidewalk de-icing was an invasive starfish being thrown back into Korea's coastal waters? Hando Choi, president of Star's Tech, joins the conversation to explain how one region's invasive species problem can become another's environmental breakthrough. The company developed ECO-ST, a de-icing product made from starfish skeletons that not only melts ice faster than conventional rock salt but also reduces the chloride pollution that causes billions of dollars in damage to roads, bridges, and vehicles every winter.

Meanwhile, in Korean w...

Subscribe to receive transcripts by email. Read along with this episode.

What if the solution to the retail industry's $890 billion returns crisis wasn't better logistics, but better logic? Disney Petit, founder and CEO of Liquidonate, is proving that the most sustainable return skips the trip back to a warehouse and goes directly to a community in need. Americans returned nearly 17% of all retail purchases last year, generating 2.6 million tons of landfill waste and 16 million tons of CO2 emissions. Each return costs retailers between $25 and $35 to process, yet 52% of consumers admit to participating in return fraud at...

Can the industry that taught the world to consume help us learn to consume more responsibly? Luke Purdy, Director of Sustainability at one of the world's leading creative agencies Wieden+Kennedy, is betting his career on it. After 13 years working on major accounts like Nike and Corona at one of the world's most influential creative agencies, Purdy did something unusual: he wrote his own job description and asked to become the agency's first sustainability director. Wieden+Kennedy gave him the job, and in 2023, the agency became the first global advertising network to achieve B Corp certification across all nine offices...

Most Silicon Valley CEOs who cash out their stock options start another tech company. Yishan Wong planted trees instead. After helping build PayPal, Facebook, and serving as Reddit's CEO, Wong concluded that humanity's biggest challenge wouldn't be solved with algorithms or network effects—it would be solved by restoring the planet's forests at an unprecedented scale. Mitch Ratcliffe sits down with Wong to discuss Terraformation, the company he founded in 2020 with an audacious mission: restore 3 billion acres of native forest worldwide—an area larger than the entire United States.

Planting a trillion trees isn't just about seeds in the...

Ten years after the Paris Agreement, the world's climate negotiators will gather in Belém, Brazil this November for COP 30, a summit many are calling a critical juncture for global climate action. After COP 29 in Baku ended with what developing nations called a woefully inadequate $300 billion annual commitment—far short of the $1.3 trillion economists say is needed—can multilateral climate negotiations still deliver the justice and transformation the climate crisis demands? And with 71% of climate finance currently provided as loans rather than grants, how is the debt crisis crushing developing countries' ability to invest in climate action?

Rebecca Thiss...

Every solar array, battery system, and EV charger installed over the past decade will eventually need to be decommissioned. Yet there's no unifying system to handle that flow of materials—no operating system for the reverse supply chain that the circular economy depends on. While Americans recycle 97% of vehicles, we recycle less than 20% of electronics, leaving valuable critical minerals like lithium, cobalt, and gold to languish in warehouses or end up in landfills. The electronics embedded in our built environment represent the richest mining scene on Earth, yet we treat these refined materials as waste rather than the valuable resources th...

Read a transcript of this episode. Subscribe to receive transcripts.

Turn on any faucet in America, and chances are the water meets federal safety standards. Yet Americans buy 50 billion single-use plastic water bottles annually—enough to circle the Earth 200 times if laid end to end. The bottles take 450 years to decompose, and recent research found that a single liter of bottled water can shed up to 240,000 pieces of microplastic that we ultimately consume. Meanwhile, 37% of global drinking water remains contaminated, with PFAS "forever chemicals" and lead appearing even in neighboring homes on the same street. Meet Scott Clawson, Ch...

Read a transcript of this episode. Subscribe to receive transcripts.

For decades, our relationship with waste has been defined by disposability and denial. The disposability of everything from coffee cups and cigarette butts to smartphones, and the denial about where it all goes when we're done with it, means that humans generate over 2 billion tons of waste globally each year, with Americans alone throwing away 290 million tons of waste annually. The convenient fiction is that recycling solves the problem. But the reality is starkly at odds with that comforting idea, and today we explore the challenge with a...

The global food system stands at a crossroads. Climate change is reshaping where crops can grow, trade disputes threaten supply chains, and smallholder farmers who produce much of our food often have the least power in the system. Meet Heather Terry, founder and CEO of GoodSAM Foods, and discover how the company is transforming the traditional smallhold farm model by putting people and regenerative agriculture at the heart of a growing food company. GoodSAM Foods sources 90% of its ingredients directly from smallholder farms in Latin America and Africa, eliminating middlemen and reinvesting profits into farming communities. Terry's approach is both...

Every summer, the same devastating story repeats across America: lakes that families have cherished for generations suddenly turn toxic green. Half a million people in Toledo lose their drinking water when Lake Erie blooms with poison algae. Or, Florida's red tide costs the state billions in lost tourism. But some of the most damaged bodies of water in America are getting a cleanup. Meet Dr. Mark Heilman, Vice President of Environmental Restoration and Advocacy at SePRO, whose two decades of water restoration work have brought 1.4 million acres of polluted lakes and wetlands across North America back to life. Mark's team...

Solar and wind have become the cheapest sources of power in human history, but political headwinds threaten to derail the fastest energy transformation ever recorded. At this crucial juncture, how do we ensure America doesn't surrender its technological leadership in clean energy to nations more willing to embrace the future? Meet Bill McKibben, legendary environmentalist and author whose four decades of climate writing have shaped our understanding of the environmental crisis. His latest book, Here Comes the Sun, argues that we're standing at the hinge of history. In 2024, 92% of new global electricity generation came from renewables, and the U.S...

The carbon removal industry stands at a crucial crossroads. While cutting emissions remains essential, avoiding catastrophic warming now requires pulling billions of tons of CO2 from the atmosphere permanently. But as this nascent field grapples with questions of legitimacy, scalability, and accountability, a critical challenge remains: How do we build the infrastructure needed to track, verify, and certify that carbon has actually been removed and stays removed? Meet Hannes Junginger-Gestrich, CEO of Carbonfuture, a company helping define the monitoring, reporting, and verification (MRV) infrastructure that could transform carbon removal from scattered efforts into a functioning ecosystem. Launched five years ago...

What if Earth is developing a planetary collective intelligence emerging from the convergence of ecological crisis, new global information systems, and the data-crunching capabilities of artificial intelligence? This provocative question drives economist Topher McDougal's book, Gaia Wakes: Earth's Emergent Consciousness in an Age of Environmental Devastation. On this episode of Sustainability In Your Ear, explore McDougal's sweeping theory that our planet may be in the early stages of developing what he calls a "Gaiacephalos"—a planetary consciousness that could fundamentally reshape humanity's role in the global ecosystem. McDougal opens his book with a striking metaphor from Star Trek: The Next Ge...

The scale of agriculture's environmental impact is staggering. According to the EPA, agricultural runoff is the leading cause of degraded water quality in rivers and streams. Today's farming practices lead to 1.70 billion tons of U.S. topsoil annually, and agriculture produces 31% of human greenhouse gas emissions. Tune in to meet Kelsey Timmerman, author of the new book, Regenerating Earth, from Patagonia Books, who faces a heartbreaking reality shared by many rural families: he can't let his children swim in the pond near their Indiana home because of agricultural contamination. Rather than accept environmental degradation as inevitable, Kelsey embarked on a...

The scale of our plastic waste crisis is staggering: the U.S. alone uses over 100 million plastic utensils every day, most of which are used once and tossed into landfills where they'll persist for centuries. From ocean pollution to overflowing campus dumpsters after lunch rush, single-use packaging defines modern food service—but universities and businesses are under mounting pressure to embrace sustainable alternatives. Tune in to a conversation with Rob Kutner, Chief Revenue Officer at USEFULL, which offers a practical solution to food service waste: a reusable takeout container system designed for the high-volume and fast pace of college cafeterias. US...

The scale of our climate challenge is staggering: humans have pumped 1.6 trillion tonnes of carbon dioxide into the air and oceans since 1750, and we're adding another 40 billion tonnes every year. Even with dramatic emissions reductions, we're still on track to blow past 1.5 degrees of warming, the Paris Accord target first breached in 2024. Tune in to a conversation with Dr. Julio Friedmann, Chief Scientist at Carbon Direct. This carbon management company partners with Fortune 500 companies such as Microsoft, JPMorgan Chase, and American Express to transform net-zero commitments into science-backed action plans. After a career that began as a researcher at ExxonMobil...

What does it take to stand on the front lines of one of the most dangerous and increasingly common realities of our climate crisis era? Discover the intense world of elite wildland firefighting with Kelly Ramsey, the first woman in about a decade to join the Rowdy River Hotshots, a pseudonymously named, California-based crew of highly trained wildland firefighters. In this episode of Earth911's Sustainability In Your Ear, Kelly shares insights from her powerful new memoir, Wildfire Days: A Woman, a Hotshot Crew, and the Burning American West, which chronicles her transformative two years fighting fires and discovering herself...

What if the solution to our plastics crisis isn't just about individual behavior change but building entirely new marketplaces that make plastic-free living accessible and transparent? On this episode of Earth911's Sustainability In Your Ear, discover the grassroots approach with Simona Paganetto, founder of Implasticfree.com, who has transformed her search for plastic alternatives into a curated directory of nearly 150 vetted brands committed to ditching plastic packaging and single-use products. What began as Simona's journey toward plastic-free living has evolved into a store that bridges the gap between conscious consumers and genuinely sustainable brands. Her rigorous vetting processes and...

As climate change accelerates and traditional crops face mounting pressures from drought, extreme weather, and soil depletion, innovative solutions are emerging from unexpected sources. Explore the soil-restoring potential of the pongamia tree with Marc Diaz, Chief Commercialization Officer at Terviva, an agtech company that has spent over a decade unlocking this hardy species’ dual capabilities as a nutritious food source and sustainable fuel feedstock. Through their Ponova platform, Terviva is demonstrating how pongamia can restore degraded agricultural land while building equitable supply chains that empower smallholder farmers, particularly women in India, with above-market wages and technical support. The tree’s versat...

What if the ingredients discarded daily in food production could become the foundation of a more sustainable food future? On this episode of Earth911's Sustainability In Your Ear,  discover the pragmatic vision with Yousuf Ahmed, founder of B-SIDES, a Brooklyn-based startup, proving that upcycled snacks can be delicious and environmentally responsible. Inspired by tasting a single slice of spent grain bread in 2014, Yousuf transitioned from finance and music to food innovation, launching B-SIDES to bring upcycled, plant-based snacks into the mainstream. The company's flagship product, Crunch Puffs, transforms oat pulp—typically discarded during oat milk production—into protein-rich, allergen-friendly snack...

As the world confronts the urgent challenge of removing billions of tons of carbon dioxide from the atmosphere, breakthrough innovation is essential to scale solutions fast enough to meet global climate goals. On this episode of Earth911's Sustainability in Your Ear, discover the groundbreaking results of the $100 million XPRIZE Carbon Removal competition, a four-year competition among 1,300 teams from 88 countries that represents one of the most ambitious efforts to catalyze carbon removal innovation. We're joined by Nikki Batchelor, Executive Director of XPRIZE Carbon Removal, and Michael Leitch, Senior Technical Lead for the competition, to discuss what may be one of...

On today's Sustainability In Your Ear, meet Brenna Simmons-St. Onge, a systems strategist, regenerative futurist, and founder of B the Light Consulting, as we explore her family's extraordinary three-year journey around the world. The Regenerative World Quest isn't your typical travel adventure; it's a deliberate mission to identify, amplify, and help replicate Earth's most promising regenerative communities and projects. From Costa Rica to South Africa, she and her family engage with leaders, learn from Indigenous knowledge holders, and discover models that regenerate land, restore community agency, and reconnect people to purpose. Brenna's aim is to demonstrate how regeneration—not just mi...

Energy is required at every step of the food and beverage industry supply chain, from growing grapes to bottling and delivery, making it a significant source of emissions and a prime target for climate innovation. On this episode of Earth911’s Sustainability in Your Ear, we explore how wineries and other producers are turning to clean, renewable energy to cut costs, reduce emissions, and future-proof their operations. We’re joined by James Presta, Business Development Manager at REC Solar, and Mario Trinchero of Trinchero Family Estates, a storied family-run winery in California’s Sonoma County. REC Solar and Trinchero teamed up to...

On today’s Sustainability In Your Ear, meet Kavita Patel, a principal at MUUS Climate Partners, as we discuss how smart investments and business support can drive environmental impact while generating returns. MUUS Climate Partners invests in early-stage climate technology companies, with a portfolio including battery recycler Nth Cycle, EV charging innovator AmpUp, and innovative air conditioning developer Harvest. The firm targets critical sectors—energy, industry, materials, and transportation—where innovation is essential for meeting climate goals. In our conversation, Kavita addresses the “green premium,” pointing out that while consumers may pay more upfront for sustainable products, they often realize long-term saving...

On today's Sustainability In Your Ear episode, discover a transformative approach to rainforest conservation with Dr. Hannah Peck, Deputy Director and Policy Lead at Cool Earth. She brings a decade of experience in the rainforests of Peru and Papua New Guinea with Cool Earth's innovative strategies that prioritize direct support over traditional carbon offset models. Cool Earth challenges the heavily promoted carbon offsets industry, arguing that they often serve as a smokescreen for continued emissions rather than a genuine solution to the climate crisis. Instead, the organization emphasizes reducing emissions at the source and investing in the people best prepared...

On this inspiring episode of Sustainability In Your Ear, we reconnect with storyteller, systems thinker, and regenerative agriculture pioneer Douglas Gayeton to explore the latest developments in the Ecological Benefits Framework (EBF)—a potentially game-changing tool designed to redefine how we value nature. First introduced during an Earth911 podcast event in 2023, the EBF offers a bold new way to measure what matters most to nature—air, water, soil, biodiversity, carbon, and equity. Unlike traditional carbon accounting, the EBF provides a comprehensive view of how projects can restore and regenerate ecosystems. 

Douglas calls the EBF a “Rosetta Stone” for ecologica...

As federal environmental protections face weakening, a grassroots movement is gaining strength across the U.S., focusing on environmental rights rather than policy adjustments. Maya van Rossum, environmental attorney and founder of the Green Amendments For The Generations movement, returns to Sustainability in Your Ear to discuss that states' response to cuts to federal environmental regulations. Maya explains how state-level constitutional amendments are redefining environmental protection as an inalienable right, akin to freedom of speech. She outlines the importance of constitutional change for achieving genuine environmental justice, the necessary steps for mobilizing community support, and how rights-based environmental movements are...