In a speech delivered to the Blue Economy and Finance Forum in Monaco, Prince William said life on the ocean floor was "diminishing before our eyes" and called for ambitious action "on a global, national and local level".

Prince William has spoken about the need to take 'bold action' to save the world's oceans during an address at the Blue Economy and Finance Forum in Monaco. William, 42, reportedly spoke in both French and English while delivering his address at the prestigious event,

Prince William on June 8 called upon world leaders to protect the planet's oceans, calling it a challenge "like none we have faced before."