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.