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In 2024, the global market for eco-labeled products crossed $500 billion. Electric vehicles, bamboo toothbrushes, compostable packaging — the shelves are full of ways to shop your way to a better planet. And yet global carbon emissions hit another record high that same year, and atmospheric CO₂ now stands above 429 parts per million. Decades of research have produced a finding that the sustainability industry doesn't want to talk about: buying green products doesn't drive the systemic change we need. It might not even be moving the needle. That's the core argument of Michael Maniates, an environmental social scientist and author of The Living Green Myth: The Promise and Limits of Lifestyle Environmentalism. Michael has spent more than 30 years studying why well-intentioned environmental choices at the checkout line fail to add up to real-world emissions reductions, and what kinds of action actually do. In this episode of Sustainability In Your Ear, he makes the case that the most powerful thing an eco-conscious person can do isn't swap their products. It's to become an active citizen. The resulting cycle has a name in Michael's framework: the trinity of despair. Earnest effort. Negligible impact. Creeping anxiety that we can't turn the corner. People try hard, see little result, feel guilty when they can't maintain perfection, and eventually burn out — or conclude that meaningful change requires getting every single person on board first. He is a sharp critic of what sociologist Elizabeth Shove has called the ABC model of social change: shift Attitudes, change Behavior, and better Choices will follow. It's the backbone of most sustainability communications — and, he argues, it's empirically fragile. Pro-environmental attitudes don't reliably produce pro-environmental behavior. Yet the model persists in education, marketing, and environmental organizing alike. Why does it keep coming back? Maniates identifies two reasons. First, it's deeply embedded in the educational system. Second, it sanitizes a genuinely gnarly problem of power and politics into a communication challenge: if we just get more information out there, people will make better choices. That framing shifts blame onto consumers, hides the structural drivers of high-carbon living, and makes life easier for politicians who don't want to touch the structural stuff. Find Michael Maniates' work, including his email to ask your direct questions, at michaelmaniates.com. His book, Consumption Corridors: Living a Good Life Within Sustainable Limits is available as a free download. The Living Green Myth: The Promise and Limits of Lifestyle Environmentalism was published in November 2025 by Polity Press.Subscribe to Sustainability In Your Ear on iTunesFollow Sustainability In Your Ear on Spreaker, iHeartRadio, or YouTube

$850 billion. That's what retail and e-commerce returns will cost in 2026, generating 8.4 billion pounds of landfill waste — and a surprising share of it involves products that worked perfectly. They just didn't look the way people expected. About 22% of consumers return items because the product looked different in person than it did online, and for home goods and textiles, that number climbs higher. The culprit has a name: metamerism — the way colors shift under different light sources, so the navy sectional and the matching throw pillow that looked identical on your screen clash under your living room LEDs. Don Carli, founder of Nima Hunter and Senior Research Fellow at the Institute for Sustainable Communication, joins Sustainability In Your Ear to explain why this keeps happening and what it would take to stop it. The fix isn't a moonshot. The relevant standards — glTF for digital rendering and ICC Max for physical material appearance — already exist and were designed to be connected. Digital textile printing already makes it possible to produce fabrics with pigment recipes that match under any lighting condition, not just one. What's missing is coordination: brands putting spectral consistency requirements into their supplier purchase orders, the same way the GMI certification transformed packaging quality once Target and Home Depot required it. The Khronos 3D Commerce Working Group has already standardized how products look across digital screens — the next step is bridging that standard to the physical object. When we get this right, a sofa stays in the home it was ordered for instead of traveling a thousand miles back to a distribution center and ending up in a landfill. That's what circularity looks like when it's applied to the seam between the digital world and the physical one. Follow Don's work at WhatTheyThink.com and on X at @DCarli. Subscribe to Sustainability In Your Ear on iTunesFollow Sustainability In Your Ear on Spreaker, iHeartRadio, or YouTube

The global energy system is changing in two big ways: it is moving from centralized fossil-fuel generation to distributed renewables, and it is becoming more digital in how energy is measured, traded, and optimized. Steve Wilhite, Executive Vice President of Advisory Services at Schneider Electric, works at the intersection of these complementary yet challenging transitions. Schneider supports more than 40% of the Fortune 500 with energy procurement and sustainability strategies, managing over $50 billion in annual energy spending. His experience shows something that pledges and press releases often miss: the biggest challenge for corporate sustainability is not money, technology, or political will. The real issue is the gap between ambition and the ability to deliver. Companies are making Science-Based Targets commitments faster than they are building the infrastructure to meet them. Scope one and two emissions are being managed better, but scope three emissions, which come from a company's supply chain, still present a systems problem that no single company can solve alone. Schneider's zero-carbon supplier program suggests what it takes to close this gap. When the company started its own effort to cut emissions from its top 1,000 suppliers by 50% in five years, all 1,000 signed up within two weeks. However, about 84% of them did not fully understand what they had agreed to. Achieving success meant creating measurement tools, education programs, and action plans to help the whole ecosystem, not just individual companies.  This critical conversation explores how renewable energy is bought, including the difference between physical and virtual power purchase agreements. Steve also explains why the Power Purchase Agreement (PPA) market became more complex as it grew, and why 10% fewer renewable deals closed in 2025 compared to 2024, as tech companies used up available clean energy.He also addresses a key question in clean energy: is AI helping the environment overall, or do its energy needs still outweigh its efficiency benefits? Schneider processes over a million energy invoices each month, and about 50,000 of them had issues that took 10 to 15 business days to resolve. Now, a team of AI systems can handle these in seconds. Accurate energy consumption and billing data directly affect emissions reporting, energy efficiency, and money-saving market decisions. He describes Schnieder's approach as "frugal AI": using the right-sized models for each task, running them on clean energy, and choosing simple solutions over complex ones. Looking ahead, electrification is building a global digital energy network in which every meter and adjustment contributes to a new system independent of central plants. As intelligence spreads, power can shift to consumers, communities, and businesses. Schneider is enabling this shift by building a mesh grid in which each point both produces and consumes energy, coordinated by AI. These changes fundamentally reshape the global energy landscape. The central question: will we intentionally build this new, distributed system, or will we repeat centralized patterns digitally? To learn more about Schneider Electric's sustainability efforts, visit se.com.

Most business leaders believe sustainability costs money. They’re wrong. The proof is sitting right under their noses, bleeding out quietly as waste, excess heat, and byproducts every day the factory runs. Danish manufacturing data shows that more than 20% of raw materials purchased by the average company never reach a finished product. In a sector where resource costs account for more than 50% of total operating expenses — compared to less than 25% for salaries — that’s not a compliance problem or a branding challenge. It’s a structural, strategic failure that most business leaders have never been trained to see. Jasper Steinhausen spent two decades watching that failure play out across more than 100 companies in the Nordic countries. He came to sustainability not from the environmental side, but from marketing, where the core lesson was that people act on what they care about, not on what you think they should care about. When he started connecting the dots between resource-flow analysis and business strategy, the conversation changed. Leaders who tuned out every sustainability pitch suddenly leaned in when the frame was cost reduction, supply chain resilience, and competitive advantage. The “green” problem turned out to be a business problem in disguise — and a solvable one. That reframing is in his book, Making Sustainability Profitable: A Leader’s Guide to Growing a Thriving Business That Makes the World a Better Place. A free digital copy of the book is available at freebook.scoreapp.com — Jasper recommends starting with Chapter Three. The argument Jasper makes is structural. Today’s business leaders have been trained rigorously in managing time and money, but almost never in managing material flows, even though materials dwarf payroll in the cost structure of most manufacturing companies. The result is a generation of leaders who are leaving more than half their cost base strategically unmanaged. The narrative problem compounds the structural one. When every leader wakes up believing sustainability is a cost, a constraint, and a compromise, they never get to the question of whether it might be something else. Jasper's idea, which he posts about on LinkedIn and tests with clients ranging from small manufacturers to government advisory roles, is that the narrative is the first hurdle. The mental transformation has to precede the business transformation. Companies that clear that hurdle and start treating sustainability as an innovation platform consistently find themselves with a layer of competitive advantage their rivals haven’t even thought to open. Our conversation also covers the greenwashing trap, and how to avoid it by going around it entirely. The problem with leading on sustainability as a marketing message, Jasper argues, is that it inverts the logic. The job isn’t to convince customers to care about the planet. It’s to identify the problem they’re already trying to solve and deliver a better solution. Once that happens to be more sustainable because sustainability, done right, produces better outcomes. “Impact follows perceived value,” he says. A water company with a genuinely pure, chemical-free source doesn’t lead with environmental stewardship. It leads with safer drinking water for your kids. The sustainability isn’t hidden — it’s structural. It’s why the product delivers what it promises. Communicating it means doing what you say, saying what you do, and backing every claim with data and a visible roadmap. That’s not a compromise. That’s the only version of sustainability communication that survives contact with a skeptical market. You can learn more about Jasper’s work at bwimpact.com and connect with him on LinkedIn.Subscribe to Sustainability In Your Ear on iTunesFollow Sustainability In Your Ear on Spreaker, iHeartRadio, or YouTube 

Every wildfire starts small. The problem is that by the time most are detected, minutes have already passed and, under increasingly common conditions driven by a warming climate, a fire can grow beyond any tanker truck's capacity to contain. The gap between ignition and coordinated response currently averages around 40 minutes. Firefighters have long understood the math: a spoonful of water in the first second, a bucket in the first minute, a truckload in the first hour. The XPRIZE Wildfire competition is an $11 million global effort to prove that autonomous systems, including AI-enabled drones, ground-based sensor networks, and space-based detection platforms, can collapse that window to 10 minutes. Our guest is Andrea Santy, who leads the program. She came to XPRIZE after nearly two decades at the World Wildlife Fund, where she watched conservation projects fall to wildfire. That experience sharpened her understanding of the stakes: wildfires are now the leading driver of deforestation globally, having surpassed agriculture. In places like the Amazon, the Congo Basin, and parts of tropical East Asia, a single fire can eliminate species found nowhere else on Earth. In cities, it can destroy entire neighborhoods in hours. On January 7, 2025, Santa Ana winds drove flames through Pacific Palisades and Altadena, destroying more than 16,000 structures, killing 30 people, displacing 180,000 residents, and generating between $76 billion and $130 billion in total economic losses from a single event. Annual U.S. wildfire costs, when healthcare, lost productivity, ecosystem damage, and rebuilding are included, are estimated between $394 billion and $893 billion. XPRIZE announced the five autonomous wildfire response finalists just over a year after the LA fires: Anduril, deploying its Lattice AI platform with autonomous fire sentry towers and Ghost X drones; Dryad, running solar-powered mesh sensor networks that detect fires at the smoldering stage; Fire Swarm Solutions, coordinating heavy-lift drone swarms that can deliver 100 gallons of water autonomously; Data Blanket, building rapidly deployable drone swarms for real-time perimeter mapping and suppression; and Wildfire Quest, a team of high school students from Valley Christian High School in San Jose who used multi-sensor triangulation to locate fires that can't be seen from monitoring positions, solving the literal over-the-hill problem that any fire detection system faces. The conversation covers what the finalists demonstrated during semi-final trials at 40-mile-per-hour winds, why the decoy fire requirement — distinguishing a wildfire from a barbecue, a pile burn, or a flapping tarp — is one of the hardest AI classification problems in the competition, and how autonomous systems would integrate with existing incident command structures. Santy is direct about where progress is lagging: the testing is ahead of the regulations. Autonomous drones operating beyond visual line of sight and coordinating with manned aircraft in active fire emergencies require FAA frameworks that don't yet exist at the necessary scale. There's also the deeper ecological tension — the growing scientific consensus that many fire-adapted landscapes need more fire, not less, and that indigenous fire stewardship practices developed over millennia have a place alongside autonomous suppression technology. One XPRIZE finalist is already working with an indigenous community in Canada to pilot their heavy-lift drone system in a remote area where that community is exploring how the technology fits their land management approach. Meanwhile, the Trump administration's FY 2026 budget proposes eliminating Forest Service state fire capacity grants, cutting vegetation and watershed management programs by 30%, and zeroing out $300 million in forest research funding — maintaining suppression spending while gutting the prevention and detection infrastructure that could reduce what there is to suppress. The engineering, Santy says, has arrived. Whether the institutions can move at the speed the crisis demands is the harder question. You can learn more about XPRIZE Wildfire and follow the finalists at xprize.org/competitions/wildfire.

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 approach: change what a cow eats. A red seaweed called Asparagopsis taxiformis contains bromoform, a compound that blocks the enzymes used by methane-producing microbes in the rumen. Today's guests didn't learn about this from a graduate seminar. They're high school students, and they built an idea for their first company around it. Every January, I judge a Shark Tank-style competition that caps a month-long entrepreneurship program at the Bush School in Seattle. This year, a pitch by three students stopped me cold. Zara, Ellie, and Kai Aizawa are the co-founders of MooBlue, whose tagline — Cut the burp, keep the beef — got a laugh, but whose business concept is entirely serious. Kai is heading to Haverford College in the fall. Zara and Ellie are still freshmen. MooBlue proposes harvesting Asparagopsis from the Mediterranean, where it is an invasive species currently harming marine ecosystems, processing it into an oil-based feed additive and building a certification and labeling system so consumers can identify beef and dairy products raised using reduced-methane feeds. What struck me wasn't just the idea. It was the depth of the research: from the biochemistry of rumen fermentation to the intellectual property landscape to a two-segment go-to-market strategy targeting large corporate operations and family farms. They covered the competitive white space, the supply chain, the financial incentives for farmers, and the consumer psychology of premium labeling, all with the ease of people who had genuinely internalized what they were talking about. The conversation shows that the internet has exploded ceiling of what a curious teenager can discover. When Zara, Ellie, and Kai needed to understand the biochemistry of enteric fermentation, they found recent, peer-reviewed research. When I was their age, those journals would have been available only at a university library, if they existed at all. Today, a high school freshman in Seattle can find a paper out of, understand the biochemistry well enough to explain it clearly, and build a company around the discovery. That changes what a generation can imagine. And it may change what we can collectively accomplish.You can learn more about the Bush School's entrepreneurship program at bush.edu. Subscribe to Sustainability In Your Ear on iTunesFollow Sustainability In Your Ear on Spreaker, iHeartRadio, or YouTube

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 not change how we use and reuse fiber, forests will be depleted faster than they can recover.   Today’s guest, Loa Dalgaard Worm, leads the Forest Stewardship Council’s Circularity Hub. This innovation team, launched in 2023, is updating a certification system that was originally designed for a linear economy 30 years ago. Her team is working to add circular business models, like take-back, repair, and leasing, to FSC’s chain-of-custody standard, which already includes 70,000 companies worldwide. They are also creating a framework to certify agricultural leftovers, such as wheat straw, rice husks, and coffee chaff, as alternative fibers for pulp-based products. This helps reduce the need for new forest fiber. Loa’s boldest idea is a royalty system that would pay forest owners a small fee each time fiber from their forest is reused or recycled into a new product. Currently, forest owners are paid only once, when they harvest a tree, and do not receive ongoing rewards for protecting ecosystems, conserving biodiversity, or supporting communities. Companies buying recycled fiber would pay for verified origin data, which they increasingly need to meet the EU Deforestation Regulation and other international standards. The pieces for this plan are coming together. FSC already runs FSC Trace, a blockchain-based traceability platform, and works with World Forest ID on isotope testing that can identify a fiber’s origin within about 15 kilometers. They also partner with esri to improve earth observation capabilities.   “We used to be able to do this,” Loa says about circularity, pointing out that remembering old habits, not just inventing new ones, is key to sustainability. “Our parents knew how to repair things. My grandmother knew how to mend all of her clothes.” FSC’s circularity work is focused on rebuilding the systems needed to help us relearn how to reuse and repair on a large scale. Loa hopes to test the royalty system within two years and present it to FSC’s General Assembly for discussion by 2029. The big question is whether institutions and markets will move quickly enough to protect forests. To learn more about the FSC Circularity Hub, visit fsc.org/circularity or email the team at [email protected]. Subscribe to Sustainability In Your Ear on iTunesFollow Sustainability In Your Ear on Spreaker, iHeartRadio, or YouTube 

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 results. This approach has led to more than 60 pilot projects in California and beyond, providing the proven results that founders and investors need to move forward. Colin offers a unique mix of experience to this field. He has served as Chief Marketing Officer at four growing companies, co-founded and led Morpho Energy, which helps put unused commercial rooftops to work for solar, and he is a certified biomimicry specialist, which shapes what he teaches founders. He often thinks about beavers, which are keystone species that create habitats for others by building their own homes. As he tells entrepreneurs, “This thing that you’re creating, it should also create better living environments for the people and the neighboring organisms all around you.” It’s an approach that applies systems thinking to business strategy, leading to companies that differ from the typical Silicon Valley disruptors. To learn more about the Net Zero Accelerator, visit NetZeroAccelerator.org. Learn about the US Green Building Council of California at USGBC-CA.org.

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 goal is to create the data foundation needed for the circular economy to work. He is a fourth-generation waste industry professional who started his career as a scale operator at a family transfer station in New York and sold a hauling business in 2021. Since then, he's built CurbWaste into a platform serving more than 150 haulers in 40 states. Its CurbPOS system for transfer stations tracks inbound and outbound materials with scale integration. It generates automated LEED diversion reports and Recycling Certification Institute-certified documentation; the per-load, per-material chain-of-custody data that extended producer responsibility programs need, as seven states now require producers to fund and document the recycling of their packaging. Mike made a simple but important point: "Waste is being created when it's being manufactured." The waste management industry reflects the economy and could become the base for a circular supply chain that keeps materials in use. Mike compares this to Amazon, which learned about buyer behavior and then built warehousing, freight, and delivery systems around that knowledge. The waste industry can do something similar. By tracking what is produced, where it goes, and where it ends up, haulers and new operators can work together on a shared digital system that gives full visibility of materials. Mike calls this the "waste meter," and he thinks an AI-powered circular economy could be in place within 10 years. Accenture research estimates that the circular economy could add $4.5 trillion in economic output by 2030, a number supported by the United Nations Development Program. Right now, investment is far below what is needed to reach that potential. CurbWaste is working to build the transparency needed to connect collection and vision, helping turn a fragmented industry into a circular supply chain. To learn more, visit curbwaste.com. Subscribe to Sustainability In Your Ear on iTunesFollow Sustainability In Your Ear on Spreaker, iHeartRadio, or YouTube

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 critical study, which found lethal plastic thresholds that could change how we view the plastic crisis. The study measured how deadly different types of plastic are to sea life, which makes the results especially useful for policymakers. Each finding suggests a clear policy action, such as banning balloon releases like Florida has done, banning plastic bags as in California’s SB 54, or improving how fishing gear is marked and recovered. Still, Erin points out that focusing only on certain plastics is not enough. Her team found that even small amounts of any plastic can be dangerous. As she says, "At the end of the day, there is too much plastic in the ocean," and we need big changes at every stage of the plastics life cycle, from production to disposal. There's encouraging evidence that interventions work. Communities in Hawaii conducted large-scale beach cleanups and saw the Hawaiian monk seal population rebound. A study published in Science confirmed that bag bans reduce plastic on beaches by 25 to 47%. And Ocean Conservancy's International Coastal Cleanup, now in its 40th year, removed more than a million plastic bags from beaches last year. These actions address a parallel crisis in human health that is building from the same pollution source. Most of the microplastics now found in humans and around the world began as the same macroplastics that are killing puffins and turtles. As Erin puts it, "I do view this all as part of the same crisis." You can read the full study at pnas.org and learn more about Ocean Conservancy's work at oceanconservancy.org.

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 factory."   Milwaukee's circular approach actually predates the term by nearly a century. In 1926, the district began producing Milorganite—Milwaukee organic nitrogen—a fertilizer made from dried biosolids that most utilities simply spread on fields or incinerate. Today, that product returns $11 to $12 million annually to the city's budget while keeping waste out of landfills. Kevin explains that this foundational commitment to doing the right thing has shaped MMSD's culture ever since: 'We just always look at those type of approaches. It's foundational to the district.' The district's eight digesters at its South Shore plant now generate 80 to 85% of the facility's electricity from biosolids, with enough material left over to continue making Milorganite. Kevin calls it Cradle to Cradle in action, referring to the philosophy pioneered by architect William McDonough, who visited MMSD in 2006 and was intrigued by work that predated his framework by decades. The district is also partnering with regional breweries and food processors, accepting their organic waste streams for co-digestion. This reduces disposal costs for industry partners while increasing energy production—a synergy that Kevin sees as the future of utility operations. Looking ahead, Kevin's 2035 vision targets 100% renewable energy and a 90% carbon reduction compared to 2005. He argues that utilities should see themselves as anchor institutions with generational responsibilities: 'I won't be here 50 years from now, but MMSD will be.' That long view has attracted new partners. 'All of a sudden they say, oh, here's someone that's thinking a little bit differently about something, and maybe we can help them, or they can help us.' The key barrier to scaling the circular economy, he believes, isn't technology—it's institutional culture and a narrow focus on regulatory compliance rather than systems thinking. You can learn more about the Milwaukee Metropolitan Sewerage District at mmsd.com. Subscribe to Sustainability In Your Ear on iTunesFollow Sustainability In Your Ear on Spreaker, iHeartRadio, or YouTube

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 data centers are straining electrical grids, and the economics of clean energy have fundamentally shifted. The energy transition's bottleneck isn't capital, it's infrastructure. The U.S. went from 110 investor-owned utilities in 1992 to just 40 today, and consolidation meant underinvestment in transmission and distribution. Data centers consumed 2% of U.S. energy demand in 2020; Peter sees that climbing to 10-12% by 2030. Blackouts and brownouts are inevitable, he says. Yet his message is pragmatic optimism: ignore Washington and watch the capital markets and blue states where climate policy is embedded in law. Many companies are "green hushing," quietly pursuing sustainability without public positioning. The energy industry thinks in 40-year cycles, making the current political moment a blip. "I've spent 56 years now in sustainability, before it had a name," he says. "What I've learned is change takes decades." Peter argues that Wall Street has genuinely internalized climate as systemic risk—not because of ideology, but because of opportunity. "Wall Street likes exchanges, likes to trade, likes volatility, and certainly likes uncertainty," he explains. "What people don't understand about Wall Street, it's about the edge. What's the arbitrage opportunity?" The reinsurance industry has stepped forward aggressively, funding carbon credits and sustainability projects. Peter's recent Earth911 article, "Climate Risk Has Become a Defining Economic Issue," explores these themes in depth. However, he sees natural gas and renewables dominating the next 15 years, while geothermal is enjoying a genuine renaissance. His optimism rests on a demographic bet: "I have a tremendous valuation on young people. I'm 75. They're inheriting this world, and they get the sustainability message globally." The summit attendees includes no government officials and no academics, just people in the trenches building and financing solutions. You can learn more at TheWallStreetGreenSummit.com. Earth911 is a media sponsor for the event. Subscribe to Sustainability In Your Ear on iTunesFollow Sustainability In Your Ear on Spreaker, iHeartRadio, or YouTube

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 established infrastructure. Overlay's strategy involves investing in innovation and implementation simultaneously—in both startups and established companies—to accelerate progress across multiple layers of the circular economy. It offers a window into where smart money sees the materials transition heading.   Elizabeth explains that sortation is the biggest bottleneck at the materials recycling facilities (MRFs) your garbage and recycling are sent to after curbside collection. The U.S. is simultaneously the world’s leading exporter of scrap aluminum and the number one importer of finished aluminum, because we've lacked domestic sorting capacity. Overlay has invested in companies like AMP Robotics, which recently closed a 20-year contract with SPSA, a southeastern Virginia municipal authority, to sort all recyclables from four to five cities using AI-driven systems. When you fix sortation, she says, you trigger a domino effect: recycling rates climb, landfill life extends, and margins improve as higher-purity materials command premium prices.   Overlay's portfolio also includes next-generation materials companies united by a common thesis: they must be better, faster, cheaper, and more sustainable than what they replace. Cruz Foam converts chitin from shrimp shells into compostable packaging foam. Simplifyber uses cellulose to create biodegradable soft goods through 3D molding, bypassing traditional textile manufacturing entirely. Terra CO2 just closed a $124 million Series B to scale low-carbon cement technology that could cut into concrete's 8% share of annual global CO2 emissions. Each uses abundant, waste-derived feedstocks and has achieved or is on a clear path to price parity with incumbents. You can learn more about Overlay Capital at overlaycapital.com Subscribe to Sustainability In Your Ear on iTunesFollow Sustainability In Your Ear on Spreaker, iHeartRadio, or YouTube

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.S. homes use it because the upfront costs for new geothermal systems have ranged from $20,000 to $31,000. The new leasing model means new homeowners can get geothermal systems for just $10 to $40 per month on a 20-year lease, which is usually far less than what they save on energy.   Dandelion is working with Lennar, one of the largest homebuilders in the country, to bring geothermal to more than 1,500 homes in Colorado over the next two years. This will be one of the biggest residential geothermal projects in U.S. history. The benefits for the power grid could be even more important than the savings for homeowners. Geothermal systems use only 25% of the peak power that air-source heat pumps need, which is a big advantage as AI data centers increase electricity demand. Yates explains that the Earth works like a huge thermal battery, storing heat in the summer for use in the winter. Geothermal lets utilities reduce peak loads on the grid throughout the year, freeing homeowners from the cost of the most expensive power.   You can learn more about Dandelion Energy at dandelionenergy.com. Subscribe to Sustainability In Your Ear on iTunesFollow Sustainability In Your Ear on Spreaker, iHeartRadio, or YouTube

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 change that. Okhtapus, named with the Persian word for the octopus, uses a model that links what Stewart calls "the three hearts" of successful projects: innovators with proven solutions, cities and ports ready to use them, and funders looking for solid projects.   The first Okhtapus Global Replicator will launch in 2026. It will bring groups of proven innovators to work on important projects in specific places, such as a single port city like Barcelona, where Okhtapus already has strong partnerships, or a group of Caribbean islands facing similar problems. The aim is to have enough successful projects that funders stop asking "where are the deals?" and start saying "we've got enough." The platform focuses on late-stage startups and scale-ups, not early-stage ideas. Stewart calls these the "Goldilocks zone"—solutions that are proven enough to copy but still need funding and partners to grow. By combining several solutions for different locations, Okhtapus can offer investors portfolios that fit their needs and make a real difference in cities, ports, and island nations.   Stewart has spent twenty years working where climate resilience and policy meet. He was part of President Obama's Hurricane Sandy Rebuilding Task Force, led policy and investments at the Resilient Cities Network, and is now Managing Director of the World Ocean Council. "Ten years from now, if this is done fast enough," Stewart said, "we should have pushed hard enough on the funders and the system to change it. What we don't know is whether we'll get to the solution status fast enough for some of these tipping points."   To find out more about Okhtapus, visit okhtapus.org. Subscribe to Sustainability In Your Ear on iTunesFollow Sustainability In Your Ear on Spreaker, iHeartRadio, or YouTube