More of us than ever are trying to make environmentally responsible travel choices. Sustainable travel is now less niche and more mainstream, with 93% of travellers in one survey saying they would consider sustainable choices.

Accordingly, an increasing number of hotels have become certified. This means they have been officially checked and approved to meet sustainability standards by an independent organisation.

The World Sustainable Hospitality Alliance says hotels need to reduce waste and emissions by as much as 66% by 2030 to deliver meaningful change. The World Travel and Tourism Council reports that more than 5,000 hotels worldwide have adopted its independent verification program.

Major chains, including Hilton, Marriott and Accor, have also set measurable sustainability targets. These commitments are shared with guests through hotel websites, signs in lobbies and cards placed in rooms.

So when it comes to booking accommodation, navigating the sheer volume of buzzwords and promises – “eco”, “sustainable”, “green”, “responsible” – can feel overwhelming.

When you’re planning your next trip, how can you check whether the........

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