The initiative seeks to address the root causes of plastic pollution, and encourages participants – businesses, governments and other tourism stakeholders – to set an example and pursue a shift towards a circular economy of plastics.

New signatories include Tui Group, AC Hotels by Marriott, Palladium Hotel Group, Sustainable Hospitality Alliance, Hostelling International, Thompson Okanagan Tourism Association and Visit Valencia.

In total, 93 firms and organisations have signed the pledge, including accommodation providers, tour operators, online platforms, suppliers, waste managers and supporting other organisations.

Andreas Vermohlen, Tui Group manager for sustainability, circular economy and sustainable development, said: “Together, we can make important steps towards less unnecessary single-use plastic in the world and shift towards a circular economy.”

The UNWTO marked the new sign ups by hosting a special panel discussion in partnership with the Ellen MacArthur Foundation, featuring participants from Accor Group, Palladium and the Sustainable Hospitality Alliance.

Zurab Pololikashvili, UNWTO secretary general, added: “Addressing plastic pollution is essential to sustainably restart tourism, preserve destinations and contribute to climate action. We are proud to see the number of signatories growing continuously since the launch of the initiative.”