The Prince of Wales has announced the 15 finalists for this year’s Earthshot Prize during the Earthshot Prize Innovation Summit in New York City.

They’ve been chosen after more than 1,100 nominees were recommended by the expert council that spends each year searching the globe for the top 15 that receive nominations.

Six continents are represented this year across five categories: Protect and Restore Nature, Clean Our Air, Revive Our Oceans, Build a Waste-Free World, and Fix Our Climate.

The finalists for the Earthshot for Protect and Restore Nature are Acción Andina from Peru, an organisation that works to protect the high Andean forest ecosystems; Freetown the Tree Town from Sierra Leone, an initiative to help with tree preservation in Freetown; and Belterra from Brazil, an organisation that works with smaller farms to restore forests through eco-friendly agricultural practices.

The finalists for the Earthshot for Clean Our Air are Polish Smog Alert from Poland, which is a clean-air campaign that runs in Poland and is planning to expand farther into Europe; ENSO from the United Kingdom, which creates eco-friendly tires to support electric vehicles; and GRST from Hong Kong, which has developed a new approach to creating lithium-ion batteries that will make electric cars run cleaner.

The finalists for the Earthshot for Revive Our Oceans are Abalobi from South Africa, which developed technology for fishermen to record their catch data; Coastal 500, Global, which is headquartered in the United States, which is a network of local government leaders who work together to restore ocean habitats and advocate for ocean protection; and WildAid Marine Programme, Global, which is headquartered in the United States, which is a network of people and companies globally that work together on ocean conservation.

The finalists for the Earthshot for Build a Waste-Free World are S4S Technologies from India, which has created solar-powered dryers and processing equipment that help farmers work efficiently to preserve their crops and prevent food waste; Circ Inc. from the United States, which has developed a way to recycle polycotton fabrics; and Colorifix from the United Kingdom, which uses both DNA sequencing and nature’s colours to create sustainable dyes for fashion that provide a more sustainable approach and reduces the need for water and harmful chemicals.

The finalists for the Earthshot Prize for Fix Our Climate are Sea Forest from Australia, which created seaweed-based livestock feed to help reduce methane emissions form livestock; Aquacyl from the United States, which uses microbial technology in industrial wastewater to treat it and make it safer; and Boomitra, a global organisation headquartered in the United States, which offers a carbon-credit marketplace for farmers through land restoration and reduced emissions.

Kensington Palace shared on social media: “Congratulations to this latest cohort of groundbreaking solutions to protect and restore the planet – each one a true inspiration. It’s such a pleasure to have them on board.”

This year’s Earthshot Prize ceremony takes place in Singapore on 7 November, and coincides with the first ever Earthshot Week. Each winner will receive £1 million in prize money to help scale up their work; and mentoring and other opportunities throughout the year.