Episodes

  • How Startups Are Using Microbes to Mine E-Waste for Copper

    How Startups Are Using Microbes to Mine E-Waste for Copper
    Jun 12 2026
    Lucas and Luna dive into the world of biomining, where startups are using engineered microbes to extract copper from electronic waste. They explore why copper is critical for the energy transition, how traditional smelting produces toxic waste, and the specific biology behind one company's approach: a startup called Mint Innovation that uses a proprietary microbe to leach copper from printed circuit boards in just hours. The hosts break down the economics: copper concentration in e-waste can be 10 to 20 times higher than in mined ore, and biomining operates at a fraction of the energy cost. They also discuss scaling challenges and whether this technology can displace traditional mining in the near term. #Biomining #Copper #Ewaste #MintInnovation #CircularEconomy #CleanTech #Startups #Microbes #MetalRecovery #Sustainability #Business #Technology #ClimateTech #EnergyTransition #Mining #Recycling #FexingoBusiness #BusinessPodcast Keep every episode free: buymeacoffee.com/fexingo
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    11 mins
  • How One Startup Turns Algae Into Carbon-Negative Bioplastics

    How One Startup Turns Algae Into Carbon-Negative Bioplastics
    Jun 11 2026
    Episode 44 of The Climate Tech Podcast explores a breakthrough in sustainable materials: using algae to produce biodegradable plastics that actually remove CO2 from the atmosphere. Lucas and Luna dive into the science behind the company AlgaeMatrix, which claims its process can sequester two tons of CO2 per ton of bioplastic produced — making it carbon-negative. They discuss the economics, the challenges of scaling algae farming, and why big brands like Coca-Cola and Unilever are investing in this technology. A concrete look at one of the most promising paths to replacing petroleum-based plastics. #ClimateTech #Sustainability #Bioplastics #Algae #CarbonNegative #AlgaeMatrix #CocaCola #Unilever #CircularEconomy #Decarbonization #CleanTech #BusinessPodcast #FexingoBusiness #Podcast #RenewableMaterials #CO2Removal #PlasticPollution #GreenChemistry Keep every episode free: buymeacoffee.com/fexingo
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    12 mins
  • How Startups Are Turning Heat from Data Centers into Green Energy

    How Startups Are Turning Heat from Data Centers into Green Energy
    Jun 11 2026
    Episode 43 of The Climate Tech Podcast with Fexingo dives into a growing trend: capturing waste heat from data centers and converting it into usable energy. Lucas and Luna explore how companies like Deep Green in the UK and a startup in Finland are installing direct-to-chip heat exchangers and heat pumps to warm homes, offices, and even commercial greenhouses. They break down the numbers: a single hyperscale data center can produce enough excess heat to warm 10,000 homes. The hosts discuss the economic incentives, the role of cloud giants like Amazon and Microsoft in funding these projects, and why this approach is more energy-efficient than building dedicated district heating plants. They also touch on the policy landscape in Europe, where data center heat recovery is becoming mandatory in countries like Denmark and Sweden. Tune in for a grounded look at how our digital infrastructure might help decarbonize heating, one server rack at a time. #DataCenter #WasteHeat #DistrictHeating #DeepGreenUK #Finland #Amazon #Microsoft #HeatRecovery #EnergyEfficiency #Decarbonization #GreenTech #Sustainability #ClimateTech #Business #Technology #BusinessPodcast #FexingoBusiness #ClimateTechPodcast Keep every episode free: buymeacoffee.com/fexingo
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    11 mins
  • How a Startup Turns Industrial CO2 Into Carbon-Negative Concrete

    How a Startup Turns Industrial CO2 Into Carbon-Negative Concrete
    Jun 10 2026
    Lucas and Luna dive into how one startup is using captured industrial carbon dioxide to make concrete that actually absorbs more CO2 than it emits. They explore the chemistry behind carbon-negative aggregates, the economics of selling a material that costs more than conventional cement, and why construction giants are already placing orders. With a focus on the startup CarbonCure and its partnership with a major ready-mix producer, this episode breaks down the numbers, the regulatory tailwinds, and whether this technology can scale beyond niche projects. Perfect for anyone curious about climate tech, materials science, or the business of decarbonizing the built environment. #CarbonCure #CarbonNegativeConcrete #CarbonCapture #ClimateTech #Decarbonization #Sustainability #Construction #Cement #CarbonDioxide #CarbonUtilization #GreenBuilding #Business #Technology #FexingoBusiness #BusinessPodcast #ClimateTechPodcast #LucasAndLuna #IndustrialEmissions Fexingo founder and producer: Ibnul Jaif Farabi Keep every episode free: buymeacoffee.com/fexingo
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    9 mins
  • How One Startup Turns Waste Heat Into Clean Cooling

    How One Startup Turns Waste Heat Into Clean Cooling
    Jun 10 2026
    Episode 41 of The Climate Tech Podcast explores a fresh angle in energy efficiency: using waste heat from industrial processes to power cooling systems. Lucas and Luna dive into the story of a startup called 'Cooling as a Service' (CaaS) that has developed a sorption-based chiller which converts 80% of waste heat into cooling for data centers and factories. They discuss how this technology could reduce global energy demand for cooling by 15% by 2030, cite a pilot project with a German steel plant that cut electricity costs by 30%, and touch on the economics of heat-driven refrigeration versus traditional vapor-compression systems. The hosts also consider the regulatory push from the EU's Energy Efficiency Directive and how this fits into the broader 'waste heat recovery' market, projected to hit $50 billion by 2027. No prior knowledge assumed—just a sharp, specific look at turning a problem (heat) into a solution (cooling). #WasteHeatRecovery #CleanCooling #EnergyEfficiency #IndustrialDecarbonization #SorptionChiller #DataCenterCooling #ClimateTech #BusinessAndTechnology #LucasAndLuna #PodcastEpisode #StartupStory #HeatToCool #CoolingAsAService #EUEnergyDirective #Decarbonization #EnergyTransition #FexingoBusiness #BusinessPodcast Fexingo founder and producer: Ibnul Jaif Farabi Keep every episode free: buymeacoffee.com/fexingo
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    10 mins
  • How a Startup Uses Bacteria to Mine E-Waste for Rare Earths

    How a Startup Uses Bacteria to Mine E-Waste for Rare Earths
    Jun 9 2026
    Episode 40 dives into a Colorado-based startup that deploys engineered bacteria to leach rare earth elements from discarded electronics. Hosts Lucas and Luna unpack the chemistry: how the microbes bind to neodymium and dysprosium, why the process consumes 80% less energy than traditional smelting, and what it means for the $57 billion e-waste problem. They explore the startup's pilot facility in Denver, the role of synthetic biology in critical mineral supply chains, and the economics of 'bio-mining' versus conventional recycling. A concrete look at one company trying to turn the mountain of old phones and wind turbine magnets into a domestic source of metals the US currently imports almost entirely from China. #RareEarths #EMining #Ewaste #SyntheticBiology #CriticalMinerals #ClimateTech #Bacteria #Neodymium #Dysprosium #CircularEconomy #SupplyChain #Denver #Startup #Decarbonization #Business #Technology #FexingoBusiness #BusinessPodcast Fexingo founder and producer: Ibnul Jaif Farabi Keep every episode free: buymeacoffee.com/fexingo
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    9 mins
  • How One Startup Turns Food Waste into Leather Alternative

    How One Startup Turns Food Waste into Leather Alternative
    Jun 9 2026
    Lucas and Luna explore how a California-based startup transforms discarded fruit peels, coffee grounds, and vegetable scraps into a leather-like material called 'Pinatex 2.0'. They dive into the specific process: taking cellulose fibers from food waste, combining them with a plant-based binder, and creating a durable textile used by brands like H&M and Matt & Nat. The episode examines the environmental impact: producing one square meter of this material uses 90% less water than traditional leather and generates 80% fewer carbon emissions. The hosts also discuss the economics—how the startup achieves cost parity with mid-range synthetic leathers by selling carbon credits from avoided methane emissions at landfills. A concrete look at the intersection of waste reduction, material science, and circular economy. #FoodWaste #LeatherAlternative #SustainableFashion #CircularEconomy #MaterialScience #Pinatex #VeganLeather #CarbonCredits #MethaneReduction #H&M #MattAndNat #ClimateTech #Business #Technology #FexingoBusiness #BusinessPodcast #StartupSpotlight #WasteToValue Fexingo founder and producer: Ibnul Jaif Farabi Keep every episode free: buymeacoffee.com/fexingo
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    9 mins
  • How One Startup Turns Methane from Cows into Graphene

    How One Startup Turns Methane from Cows into Graphene
    Jun 8 2026
    Cows belch methane, a greenhouse gas 80 times more potent than CO2 over 20 years. But a Colorado-based startup called Advanced Methane Recycling has found a way to capture that methane and turn it into graphene — a super-strong, conductive material worth up to $200,000 per ton. In this episode, Lucas and Luna dig into the chemistry behind the process, the economics of turning a waste stream into a premium material, and whether this could scale beyond the pilot phase. They also explore how the same technology could be applied to landfills and wastewater treatment plants, and why investors like Breakthrough Energy Ventures are betting on it. If you've ever wondered how a cow's burp could end up in your smartphone battery or bike frame, this episode explains the surprising supply chain. #MethaneToGraphene #AdvancedMethaneRecycling #ClimateTech #CarbonCapture #Graphene #LivestockEmissions #SustainableMaterials #VentureCapital #BreakthroughEnergyVentures #ColoradoStartup #GreenhouseGas #CircularEconomy #CleanTech #Business #Technology #FexingoBusiness #BusinessPodcast #ClimateTechPodcast Fexingo founder and producer: Ibnul Jaif Farabi Keep every episode free: buymeacoffee.com/fexingo
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    11 mins