French President Emmanuel Macron met several world leaders on the margins of the third U.N. Ocean Conference in Nice on Monday (June 9).

The summit, gathering heads of state, scientists and advocates, is meant to cover climate change, pollution, biodiversity and making humanity's access to marine resources more sustainable.

One of the stated goals of the French government was to convince enough states to ratify the High Seas Treaty, adopted by the United Nations in 2023, for it to come into effect.

The pact is seen as a crucial tool to meet a target to protect 30% of the Earth's land and sea by 2030, known as "30 by 30."

The UNOC3 runs until Friday (June 13).

DESCRIPCIÓN DE IMÁGENES

NICE, FRANCE (JUNE 9, 2025) (REUTERS - Access all)

1. VARIOUS OF NICE PORT WITH VENUE FOR THE THIRD UNITED NATIONS OCEAN CONFERENCE (UNOC3)

NICE, FRANCE (JUNE 9, 2025) (AGENCY POOL - Access all)

2. FRENCH PRESIDENT EMMANUEL MACRON MEETING CHINA'S VICE PRESIDENT HAN ZHENG

3. VARIOUS OF MACRON MEETING JORDAN'S KING ABDALLAH II

4. MACRON MEETING COMOROS PRESIDENT AZALI ASSOUMANI

5. MACRON MEETING ARGENTINIAN PRESIDENT JAVIER MILEI

6. MACRON MEETING UNITED NATIONS SECRETARY GENERAL ANTONIO GUTERRES

NICE, FRANCE (JUNE 9, 2025) (REUTERS - Access all)

7. EXTERIOR OF VENUE

8. STREET

9. SIGN FOR VENUE

10. PEOPLE IN STREET WITH MAP FOR VENUE

11. PEOPLE WALKING IN STREET