It is possible to trigger ocean oxygen depletion, choking the world’s seas.

While global ocean health has remained relatively stable over the past five years, individual countries have seen changes, according to a study published July 5, 2017 in the open-access journal PLO

Growing international and national focus on quantitatively measuring and improving ocean health has increased the need for comprehensive, scientific, and repeated indicators to track progress towards achieving policy and societal goals. The Ocean Health Index (OHI) is one of the few indicators available for this purpose.

As humans put ever more heat-trapping gases into the atmosphere, the Earth heats up. These are the basics of global warming. But where does the heat go? How much extra heat is there?

Fears that progress towards some Sustainable Development Goals (SDGs) may undermine achievements in others are largely unfounded, a science-based analysis of their interactions has concluded.

The Ocean Atlas illustrates the important role played by the seas and the global maritime ecosystems – not just for people living on the coasts but for all of us. The Atlas provides up-to-date insights into the state of the seas that form a basis of human livelihood and into the factors threatening them.

As world leaders criticise the United States for pulling out of the Paris climate agreement, scientists are trying to work out exactly what a warmer world will mean.

President Ali Bongo Ondimba announced to the UN Ocean Conference that the government of Gabon has created a network of marine protected areas the size of Costa Rica.

On World Oceans Day, 8 June, UNESCO will present the first ever global stock-taking of the oceanographic sciences at the United Nations' Ocean Conference, at the UN in New York from 5 to 9 June.

Global average temperatures could pass 1.5C above pre-industrial levels within the next decade, new projections suggest.

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