Prince Harry has appeared in a new video for one of his passion projects to mark London Climate Action Week, just hours after Prince William’s new appearance for the same reason, and weeks before the Duke’s return to the UK. The Duke of Sussex is seen in a new short film by Travalyst, his non-profit organisation for sustainable travel, founded in 2019, urging people to make a positive change as “travel stands at a crossroads”.

According to a statement, the new film “outlines how Travalyst is working to build something different. From untangling fragmented data into a single source of truth, to driving the industry towards a powerful collective, Travalyst’s new film shares how travel can unlock action from travellers, businesses and communities – and the coalition’s role in making this happen.” Harry says in the video: “Today, travel stands at a crossroads.

It could be a catalyst for positive change, but also a source of environmental strain, driving emissions, overwhelming destinations, depleting the natural world it depends on.”

The Duke said that the non-profit is working to “build something different”. He says: “From tangled, fragmented data to a single source of truth. From hidden impacts to trusted, transparent choices. From siloed efforts to a powerful collective.

“From small tweaks to accelerating systems change. From travel stuck in the past to travel that unlocks action from travellers, businesses, and communities. From where we are to where we need to be.”

Harry claimed that travel has the “power to drive change,” adding: “Together, we have the power to change travel for good.”

Meanwhile, on Tuesday, Harry’s brother, Prince William, attended the Earthshot Prize Impact Assembly at Guildhall in central London.

He said he is feeling “more optimistic than ever” about the planet’s environmental future after seeing the evidence that his Earthshot Prize finalists are making a difference.

William said: “Solutions are working. Capital is moving. Policy is shifting”, as he addressed an assembly celebrating the impact that prize-winners have made helping to “repair” the planet.

The future king is halfway through his 10-year Earthshot Prize project to recognise innovative solutions to solve environmental problems and scale up the ideas.

William said Earthshot had supported 75 finalists who, during the past five years, had protected and restored 1.4 million square kilometres of land, ocean and coastline, saved 21 million tonnes of water and removed, upcycled or avoided almost half a million tonnes of waste.

William will stage his 2026 environmental awards in Mumbai, India’s financial capital, in November. He sees the Commonwealth’s large number of young people as a potential driving force for change.

Meanwhile, Harry is set to make a bombshell return to the UK next month, and will reportedly be joined by his entire family, including his wife, Meghan Markle and their two children, Prince Archie and Princess Lilibet.

His return is to mark the One Year To Go event for the Invictus Games 2027 in Birmingham.