Harrison Ashcroft - SEA Case Story

Harrison Ashcroft is a Small Business Sustainability Partner, based in Sydney, Australia.


What brought you to this moment in your career where the Sustainability Excellence Associate (SEA) made sense for you?


I completed a Diploma of Sustainable Practice and began implementing sustainable strategies in a small business in 2021. The internal and external benefits were immediately perceptible, and I committed to a career furthering sustainability goals. I joined ISSP and began attending the monthly webinars, which have all been exceptionally informative. The opportunity to solidify my core knowledge whilst studying for the SEA exam was attractive, and the credential has given me the confidence to operate as a sustainability professional.   


How are you putting the knowledge, skills, and ability demonstrated in the SEA to work in your career (or work) today?


The knowledge and skills I continue to gain whilst maintaining my SEA credential have enabled me to partner with businesses and map pathways towards embedded sustainability. Focus areas often include the business case for sustainability, systems thinking, theories of behaviour change and innovative tools and technology. 


I work with nano, micro, and small businesses — listening, observing, and assisting where possible to understand the operation and the people as best I can. The sustainability journey is seldom linear, and flexibility is key. Outlining a path forward can be a helpful start, but I am always prepared to walk off the beaten track.


For those starting out in the sustainability field, what advice do you have for them?


Make a commitment to lifelong learning. Investigate the principles of sustainability as general concepts, and then find your own style — your own way of applying what you know, to where you are. The world needs different individuals with contrasting views from diverse backgrounds working on complex problems.

Read perspectives from the ISSP blog

By Jacqueline Kerr, PHD May 27, 2026
May 2026 We spend enormous energy telling people what needs to change, and very little time thinking about how change actually happens. Most sustainability efforts inside organizations are built around the individual. Convince the right person. Model the right behavior. Win the argument in the room. And to be fair, that approach gets things moving. Until it doesn't. The real barrier isn't information. It isn't even intent. It's the conditions we create for people to change together. What I'm seeing in the most effective organizations isn't individual champions doing heroic work. It's something more structural: well-designed groups where people shift together, hold each other accountable, and build something that doesn't collapse when one person leaves the room.
By Nitesh Dullabh April 28, 2026
April 2026 I walked away from a recent webinar with a lingering thought: we’ve spent years improving supply chains, but very little time truly rethinking them. Most of the systems we rely on today were built for efficiency - to move goods faster, cheaper, at scale. And to be fair, they’ve done that remarkably well. But they were never designed for the complexity we’re now facing: climate volatility, geopolitical and tariff uncertainty, water stress, soil degradation, and widening inequities across supply chains. So what do we do? We add layers - more audits, more reporting, more standards. Necessary? Yes. Sufficient? Not really. The deeper issue is not performance - it’s creating healthy conditions for design and structure. What I’m seeing instead, and what I believe is the real shift underway, is the move toward regenerative partnerships . Not transactional relationships, but systems of collaboration that are designed to endure, adapt, and regenerate value over time through and with relational relationships. 
By By Amy Hall, MSc, Education Lead, TripleWin Advisory March 23, 2026
March 23, 2026 I spend a lot of time thinking about how we teach sustainability. Not just the what , but the how and why . At TripleWin Advisory , a woman-founded, -owned, and -led sustainability consultancy and registered public benefit company, we believe real progress on circularity requires more than good intentions. It requires practitioners who are genuinely equipped to act. That conviction is what led us to develop two courses now available through ISSP: Cultivate and Mitigate . Both courses have since been adopted by universities and are reaching sustainability students across the country. Knowing what went into building them makes me want to share the story behind each one. Mitigate: Built From Practice, Not Textbooks Mitigate was created from hands-on work with partners tackling one of the most pressing issues in sustainability: food waste. Reducing food waste is consistently ranked among the highest-impact solutions to climate change, and yet it remains one of the most underfunded and under-addressed areas in the field. TripleWin Advisory has worked with the World Wildlife Fund (WWF) and the Pacific Coast Food Waste Commitment (PCFWC) , a public-private partnership whose frameworks were ultimately adopted at the national level. Those assets, that research, and those hard-won insights form the backbone of Mitigate. When we talk about food waste reduction strategies in this course, we're drawing on frameworks that have been tested and refined in real supply chains and policy environments. For learners who want to do this work professionally, that grounding matters. The University of Wisconsin has integrated Mitigate into their undergraduate and graduate sustainability programs, which speaks to what the course offers academically: rigorous, applied content that bridges the classroom and the field.
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