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Sustainable Edge

Sustainable Edge

By: Position Green
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The Sustainable Edge podcast series, hosted by Position Green Co-Founder and Executive Chair Joachim Nahem, centres on a variety of guests who bring their unique perspective of corporate sustainability transformation and ESG, and how best to drive value creation and increase competitiveness by turning ESG data insights into targeted action.© 2026 Position Green All Rights Reserved. Economics
Episodes
  • Sustainable Edge: Capital, climate and the next economic transition with Nina Siemiatkowski

    Sustainable Edge: Capital, climate and the next economic transition with Nina Siemiatkowski
    Jun 24 2026
    Climate may have moved down the headlines, but the challenges facing businesses and society have not gone away. In this episode of Sustainable Edge, Nina Siemiatkowski, co-founder of Milkywire and Flat Capital, explores how capital can accelerate climate and nature solutions, why carbon removal is becoming a critical tool in the net zero transition, and what sustainability leaders can learn from the world of technology and venture capital.In this episode of Sustainable EdgeHost Joachim Nahem, Executive Chairman and Co-Founder at Position Green, sits down with Nina Siemiatkowski, co-founder and CEO of Milkywire, entrepreneur, investor, and co-founder of Flat Capital.Nina's journey is anything but conventional. After a successful corporate career, she became a wildlife photographer, spending years documenting ecosystems and biodiversity in Africa. Those experiences exposed her to the realities of biodiversity loss and climate change and ultimately inspired her to build Milkywire, a company dedicated to helping organisations fund high impact climate and nature solutions.Today, Nina operates at the intersection of sustainability, entrepreneurship, and technology. Through Milkywire, she helps companies navigate climate and nature investments, while through Flat Capital she invests in some of the world's most influential technology companies, including OpenAI and SpaceX. Her unique perspective offers valuable insights into how capital, innovation, and long term thinking can help drive the next phase of the sustainability transition.Nina Siemiatkowski shares her perspective on the future of climate action, carbon markets, nature restoration, and entrepreneurship. She explains why sustainability remains a long term economic opportunity despite shifting political priorities and changing market sentiment.Learn about:Capital as a catalyst for climate action Why funding climate and nature solutions remains one of the biggest untapped opportunities for businesses and investors.The future of carbon removal How durable carbon removal is evolving from a niche market into an essential component of credible net zero strategies.Beyond emissions reductions Why businesses need to think not only about reducing emissions, but also about restoring nature and supporting climate solutions.Scaling climate solutions like technology companies What climate entrepreneurs can learn from the growth journeys of successful technology businesses.The risks of premature scaling Why many founders overestimate market readiness and how to balance ambition with discipline.Profit and impact go hand in hand Why long term impact requires financially sustainable business models.Climate, AI, and the battle for capital What today's investment trends reveal about conviction, innovation, and future market opportunities.Reasons for optimism Why Nina believes the sustainability transition is continuing, even if it is happening more quietly than before.About Nina SiemiatkowskiNina Siemiatkowski is the co-founder and CEO of Milkywire, an impact firm helping companies design and manage programs that support climate and nature goals. Milkywire works with leading organisations to fund high quality climate solutions, biodiversity initiatives, and carbon removal projects around the world.Nina is also the co-founder of Flat Capital, a publicly listed investment company that invests in frontier technology companies including OpenAI and SpaceX. Having also witnessed the growth of Klarna from close range, she brings a rare combination of experience across entrepreneurship, investing, technology, and sustainability.A passionate advocate for climate and nature, Nina continues to explore how capital can be directed toward solving some of the world's most pressing environmental challenges.Why it mattersAs businesses navigate economic uncertainty, geopolitical tensions, and rapid technological change, sustainability can sometimes feel less urgent than it did just a few years ago. Yet climate change, biodiversity loss, and resource constraints continue to shape the long term outlook for economies and markets.Nina argues that the next phase of the transition will be defined not by promises, but by execution. Companies, investors, and entrepreneurs that understand how to combine innovation, capital, and long term thinking will be best positioned to create value while contributing to a more resilient future.Resource from this episode: https://milkywire.com/white-papers/operational-net-zero
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    43 mins
  • Sustainable Edge: Long term investing and sustainability in an uncertain world with Siri Sachs and Johan H. Andresen

    Sustainable Edge: Long term investing and sustainability in an uncertain world with Siri Sachs and Johan H. Andresen
    May 28 2026

    As geopolitical tensions rise and sustainability faces growing scrutiny, some long term investors are doubling down instead of pulling back. In this live episode of Sustainable Edge, Siri Sachs of the Wallenberg ecosystem and Johan H. Andresen of FERD explore how resilience, competitiveness, ethics, and sustainability shape investment decisions in a world where uncertainty has become the new normal.


    In this episode

    Siri Sachs and Johan H. Andresen share how family ownership structures can enable long term thinking and why sustainability remains deeply tied to resilience and competitiveness, even in a more fragmented global landscape.


    Learn about:

    • Long term investing in uncertain times Why some investors continue backing large scale green transitions despite market volatility and political uncertainty
    • Sustainability and competitiveness How climate investments are increasingly viewed as essential for future industrial strength and resilience
    • Risk taking and transformation: Why family owned businesses can take longer term bets that public markets often avoid
    • Purpose beyond profit: How responsibility, social impact, and ethics influence investment decisions and talent attraction
    • Engagement versus exclusion: Why active ownership and supplier engagement can sometimes drive more meaningful change than divestment
    • AI and ethical leadership: How investors are thinking about the opportunities and risks tied to artificial intelligence and autonomous systems
    • Regulation and execution: Why predictable frameworks matter, but overregulation can risk slowing competitiveness and innovation
    • The future of Nordic leadership: How collaboration, trust, and long term ownership models could help shape a more sustainable economy


    About Siri Sachs

    Siri Sachs is a Board Member at Wallenberg Investments and part of the sixth generation of the Wallenberg family. The Wallenberg ecosystem includes foundations, industrial holdings, and global companies such as ABB, AstraZeneca, Ericsson, and SEB. Her work focuses on long term ownership, competitiveness, and ensuring that investments contribute to future resilience and innovation.


    About Johan H. Andresen

    Johan H. Andresen is the Owner and Chair of FERD, a family owned investment company focused on long term value creation and social impact. Under his leadership, FERD transformed from a tobacco business into a diversified investment platform with holdings across industry, technology, and sustainability focused ventures. Johan has also chaired the Ethics Council of Norway’s sovereign wealth fund, helping shape ethical investment practices for one of the world’s largest funds.
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    41 mins
  • Sustainable Edge: Sustainability, leadership, and competitiveness in a fragmented world with Iván Duque, former President of Colombia

    Sustainable Edge: Sustainability, leadership, and competitiveness in a fragmented world with Iván Duque, former President of Colombia
    Apr 27 2026

    What does it take to lead on climate in a world shaped by distrust, geopolitics, and competing priorities? In this episode, former Colombian President Iván Duque shares how sustainability can be positioned not as a cost, but as a driver of competitiveness, and why leadership matters more than ever in turning ambition into action.


    In this episode of Sustainable Edge

    Host Joachim Nahem, Executive Chairman and Co-Founder at Position Green, sits down with Iván Duque, former President of Colombia, to explore what sustainability leadership looks like at the highest level of government.

    During his presidency, Duque led one of Latin America’s most ambitious climate agendas, balancing economic growth, peacebuilding, and environmental protection. Under his leadership, Colombia expanded protected areas to cover more than a third of its territory and committed to reducing greenhouse gas emissions by 51 percent by 2030 .

    Today, as global cooperation weakens and political landscapes become more fragmented, the question is no longer just what needs to be done, but how to move forward in a world where trust is declining and priorities are shifting.


    Learn about:

    • Sustainability as competitiveness Why climate ambition can strengthen economic positioning rather than weaken it
    • Leading through uncertainty What it takes to advance climate action in a world of declining trust and geopolitical fragmentation
    • The role of middle powers How countries like Colombia can shape global cooperation even without the largest economies leading
    • From ambition to implementation What enabled Colombia to pass climate legislation and scale environmental protection at speed
    • Markets and capital flows Why unlocking private finance and market mechanisms is critical for global climate progress
    • Bridging polarization How reframing sustainability conversations can create alignment across political and ideological divides
    • Long term leadership Why sustainability must be embedded into decision making as a core principle of governance and business


    Beyond politicsBeyond his work in policy and sustainability, Iván Duque is also known for an unexpected passion: DJing. What started as a personal interest has become a way to connect with audiences in a completely different setting.Read more
    About Iván Duque

    Iván Duque is the former President of Colombia and a global advocate for climate action and sustainable development. During his presidency, he led efforts to expand environmental protection, implement a national climate strategy, and position Colombia as a leader in biodiversity conservation. He currently serves as a trustee of the Science Based Targets initiative and holds advisory roles across leading global sustainability organisations, continuing to shape the conversation on climate, policy, and economic development .
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    32 mins
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