Thousands of politicians, experts and environmental activists have gathered since Monday in Lisbon at the call of the UN to work to preserve the fragile health of the oceans and avoid the “cascading effects” that threaten the environment and humanity.
“Unfortunately, we took the ocean for granted. We are currently facing what I would call a state of ocean emergency,” said UN Secretary General António Guterres of Portugal.
“Our failure to preserve the ocean will have cascading effects,” he said in his opening speech for this five-day conference, which has been postponed several times due to the pandemic.
The seas, which cover more than two-thirds of the planet’s surface, generate half the oxygen we breathe and represent a vital source of protein for the daily lives of billions of people.
The ocean also plays a key role for life on Earth by mitigating the impacts of climate change. But the cost is considerable.
By absorbing about a quarter of CO pollution2even as emissions have increased by 50% over the past 60 years, the sea has become more acidic, destabilizing aquatic food chains and reducing its ability to capture ever more carbon dioxide.
And, by absorbing more than 90% of the excess heat caused by global warming, the ocean is experiencing powerful sea heat waves that are destroying precious coral reefs, and oxygen-deprived dead zones are spreading.
“Devastation”
“We still have little idea of the scale of the devastation wrought by climate change on the health of the oceans,” said Charlotte de Fontaubert, the World Bank’s leading blue economy expert.
At the current rate, plastic pollution will triple by 2060, to one billion tons per year, according to a report by the organization for cooperation and economic development (OECD).
Already, microplastics cause the death of one million birds and more than 100,000 marine mammals each year.
Participants at the Lisbon meeting will discuss proposals to address this, which range from recycling to a total ban on plastic bags. The problem of overfishing is also on the agenda of the conference, organized jointly by Portugal and Kenya.
“At least a third of wild fish stocks are overfished, and less than 10% of the ocean is protected,” comments Kathryn Mathews, scientific director of the American NGO Oceana.
“Illegal fishing vessels wreak havoc with impunity, in coastal waters and on the high seas,” she said.
Protection areas
The debates will also focus on a possible moratorium aimed at protecting the seabed from mining in search of rare metals needed to manufacture batteries for the flourishing sector of electric vehicles.
A coalition bringing together nearly a hundred countries is also advocating a flagship measure aimed at declaring protection zones covering 30% of the planet’s oceans and land. Another central subject: “blue food”, supposed to make the oceans a means of subsistence that is both sustainable and socially responsible.
Many ministers and some heads of state, including French President Emmanuel Macron, expected Thursday, will participate in this meeting which, however, is not intended to become a formal negotiation session.
Some participants will nevertheless take the opportunity to defend an ambitious policy for the oceans in view of the two crucial summits to be held at the end of the year: the UN climate conference COP27 will take place in November in Egypt, followed in December by the long-awaited United Nations conference on biodiversity COP15, which will take place in Canada under the Chinese presidency.