South African explorer Steve Boyes embarks on a mission to map and record scientific baselines across all the major inland river basins of Africa, including the Chambeshi River. CNN is committed to reporting on the environmental challenges facing our planet, together with the solutions. Through Call to Earth and in partnership with Rolex as part of their Perpetual Planet Initiative, we will champion extraordinary people and projects, helping to create a more sustainable future. Our goal is to drive awareness, action and education around key issues, inspiring a blueprint for a more environmentally conscious life. United States 2024.

South African explorer Steve Boyes embarks on a mission to map and record scientific baselines across all the major inland river basins of Africa, including the Chambeshi River. CNN is committed to reporting on the environmental challenges facing our planet, together with the solutions. Through Call to Earth and in partnership with Rolex as part of their Perpetual Planet Initiative, we will champion extraordinary people and projects, helping to create a more sustainable future. Our goal is to drive awareness, action and education around key issues, inspiring a blueprint for a more environmentally conscious life. United States 2024.

South African explorer Steve Boyes embarks on a mission to map and record scientific baselines across all the major inland river basins of Africa, including the Chambeshi River. CNN is committed to reporting on the environmental challenges facing our planet, together with the solutions. Through Call to Earth and in partnership with Rolex as part of their Perpetual Planet Initiative, we will champion extraordinary people and projects, helping to create a more sustainable future. Our goal is to drive awareness, action and education around key issues, inspiring a blueprint for a more environmentally conscious life. United States 2024.

South African explorer Steve Boyes embarks on a mission to map and record scientific baselines across all the major inland river basins of Africa, including the Chambeshi River. CNN is committed to reporting on the environmental challenges facing our planet, together with the solutions. Through Call to Earth and in partnership with Rolex as part of their Perpetual Planet Initiative, we will champion extraordinary people and projects, helping to create a more sustainable future. Our goal is to drive awareness, action and education around key issues, inspiring a blueprint for a more environmentally conscious life. United States 2024.

South African explorer Steve Boyes embarks on a mission to map and record scientific baselines across all the major inland river basins of Africa, including the Chambeshi River. CNN is committed to reporting on the environmental challenges facing our planet, together with the solutions. Through Call to Earth and in partnership with Rolex as part of their Perpetual Planet Initiative, we will champion extraordinary people and projects, helping to create a more sustainable future. Our goal is to drive awareness, action and education around key issues, inspiring a blueprint for a more environmentally conscious life. United States 2024.

Dr. Austin Gallagher, founder and CEO of Beneath the Waves, leads an expedition to advance their groundbreaking research with sharks and turtles in the Bahamas. CNN is committed to reporting on the environmental challenges facing our planet, together with the solutions. Through Call to Earth and in partnership with Rolex as part of their Perpetual Planet Initiative, we will champion extraordinary people and projects, helping to create a more sustainable future. Our goal is to drive awareness, action and education around key issues, inspiring a blueprint for a more environmentally conscious life. United States 2024.

Titouan Bernicot and his Coral Gardeners are on a mission to save the world's coral reefs using cutting-edge science and innovations to revolutionize ocean conservation. CNN is committed to reporting on the environmental challenges facing our planet, together with the solutions. Through Call to Earth and in partnership with Rolex as part of their Perpetual Planet Initiative, we will champion extraordinary people and projects, helping to create a more sustainable future. Our goal is to drive awareness, action and education around key issues, inspiring a blueprint for a more environmentally conscious life. United States 2023.

Brittany, France is a hotspot for seaweed, a hidden treasure that Vincent Doumeizel believes is an untapped resource that can address some of our planet's greatest challenges. CNN is committed to reporting on the environmental challenges facing our planet, together with the solutions. Through Call to Earth and in partnership with Rolex as part of their Perpetual Planet Initiative, we will champion extraordinary people and projects, helping to create a more sustainable future. Our goal is to drive awareness, action and education around key issues, inspiring a blueprint for a more environmentally conscious life. United States 2023.

Gerardo Garcia and his team at Chester Zoo have become the last line of defense for some of the most vulnerable creatures on the planet - a wall against extinction. CNN is committed to reporting on the environmental challenges facing our planet, together with the solutions. Through Call to Earth and in partnership with Rolex as part of their Perpetual Planet Initiative, we will champion extraordinary people and projects, helping to create a more sustainable future. Our goal is to drive awareness, action and education around key issues, inspiring a blueprint for a more environmentally conscious life. United States 2023.