With the fast-rising concern over the climate crisis, we all have to take action at every level. We can look to government for new laws and ambitious projects. We can demand large corporations change their models. We can make a direct impact through citizens’ assemblies such as that being tried in Camden, north London. We can change our own personal behaviour. But with so many small and micro companies playing a vital role in the UK economy – what can small businesses do to put sustainability at the top of their agenda?