Helping you move from good intent to action
Sarah Duncan has been advising companies on business ethics and sustainability since her first award-winning book (The Ethical Business Book) was published in 2019. She has helped many businesses understand their environmental and social impact and recognise the risks, rewards and requirements associated with sustainable business development (or ESG – Environmental, Social, Governance).
Much of her approach comes from The PLANET System® framework that she created with husband Kevin for The Sustainable Business Book, published in 2023.
Whilst this provides a structure, Sarah views every business with fresh eyes and a bespoke approach that is realistic and sympathetic to current business operations and existing development plans.
The PLANET System®
PLANET stands for: Panic, Learn, Agree, Navigate, Enact, Tell.
The PLANET System® products are informed by a great deal of our own study, reading and research, which we have condensed down into straightforward language and bite-size, action-orientated learning and improvement tools and programmes.
The PLANET System® is all about progress not perfection. Everything is designed to move you from good intent to action – as fast as possible.
* Specific Hospitality/Tourism focused options available.
From The Sustainable Business Book
The PLANET System® first featured in The Sustainable Business Book.
Everyone we speak to is saying Sustainability (or ESG) is still high on the business agenda, but action is often limited. Getting sustainability programmes and initiatives off the ground is often easier than people think and the book and The PLANET System® explains how to achieve this.
The book and system are informed by a large amount of research, reading and consulting over the past six years. We have also been through the complete process of B Corp certification, which has helped to shine a light on our own business and make sure that we practice what we preach.
We have now sold over 3,000 copies of the book, trained over 600 people and helped over 500 companies with our free online support products.
Sustainability Records
Our Sustainability podcast series, where we ask top business thinkers to explore how their sustainability journeys have been influenced by personal experiences, events, writing and even music.








































