While it is positive to see so many global businesses recognise the need to step up and engage in sustainable practices, there is often a gulf between the green credentials in the marketing copy of hotels, tour operators and destinations and provable, measurable action. The word ‘sustainable’ is swiftly becoming a catch-all buzzword, typically used with undeserved certainty to declare whether something is or isn’t sustainable. It is far more honest, and therefore more valuable to travellers and consumers, to acknowledge that such things are actually measured by degrees. The purpose of this list, now in its third edition, is to draw attention to the good work being done in the travel industry, showing where action meets – or exceeds – expectations, so that you can support the places and businesses putting people and the planet first.