1) Moscow, Russia
2) Beijing, China
3) Lisbon, Portugal
4) New Delhi, India
Explanation:
United Nations General Assembly (UNGA) has decided to hold Ocean Conference 2020 in Lisbon, Portugal from June 2 to 6, 2020. The objective of this conference is to support the implementation of Sustainable Development Goal 14 (SDG 14) which stated as to conserve and sustainably use the oceans, seas and marine resources for sustainable development.