90 days to economic collapse: UN and experts sound alarm over security at sea

Addressing a high-level debate of the Security Council, António Guterres said that oceans and seas are “sending a clear SOS,” as maritime spaces face escalating pressure from both traditional threats and new dangers – including piracy, armed robbery, trafficking, terrorism, cyberattacks and territorial disputes.

“From time immemorial, maritime routes have bound the world together,” he said.

“But maritime spaces are increasingly under strain…and without maritime security, there can be no global security.

Spike in piracy, attacks

The Secretary-General pointed to a sharp spike in piracy and armed robbery at sea in early 2025, citing International Maritime Organization (IMO) figures showing a 47.5 per cent increase in reported incidents compared to the same period last year.

The rise was most pronounced in Asia, especially in the busy Straits of Malacca and Singapore.

He also highlighted continued attacks on shipping in the Red Sea and Gulf of Aden by Houthi forces, disruptions in the Black Sea, and growing criminal networks trafficking drugs and people across the Gulf of Guinea, the Mediterranean and the Atlantic.

The debate was a signature event of the Greek presidency of the Council. Prime Minister Kyriakos Mitsotakis held the gavel, and several ministers were in the chamber.

A 90-day countdown to collapse

Melina Travlos, President of the Union of Greek Shipowners, delivered a stark warning to Council members: if the global shipping system grinds to a halt, the world economy will collapse in just 90 days.

She described shipping as “the silent guardian of global welfare,” noting that 90 per cent of international trade and more than 12 billion tonnes of goods depend on maritime transport each year.

Shipping unites the world, not occasionally, but consistently,” she said, calling for greater protection of seafarers and maritime infrastructure amid increasing and more complex threats.

Security forces board a boat suspected of piracy in the Gulf of Guinea. (file)

Security forces board a boat suspected of piracy in the Gulf of Guinea. (file)

One ship, six days, billions lost

Christian Bueger, a professor of international relations at the University of Copenhagen, reminded ambassadors that in 2021, a single ship – the Ever Given – blocked the Suez Canal for six days, costing the global economy billions.

Never before in history have we been as dependent on the sea as we are today,” he said, citing a 300 per cent rise in maritime trade since the 1990s.

Mr. Bueger urged Member States to adopt a more systematic, evidence-based approach to maritime security, urging a global response that is as interconnected as the threats it faces.

Uphold law of the sea

In his remarks, Secretary-General Guterres laid out a three-pronged strategy to strengthen maritime security – highlighting that decisive, coordinated global action is needed regardless of individual flashpoints or shipping disruptions.

These include upholding international law, tackling the root causes of maritime insecurity, and strengthening global partnerships.

He called on all nations to uphold international law, especially the UN Convention on the Law of the Sea (UNCLOS), the international treaty that sets the legal framework for all maritime activities and regulates the use of ocean and its resources.

This framework is only as strong as States’ commitment to full and effective implementation,” he said.

“All States must live up to their obligations.”

Secretary-General António Guterres (centre) addresses the UN Security Council meeting on strengthening maritime security through international cooperation for global stability under maintenance of international peace and security.

Prioritise investment

On root causes, he urged investment in coastal communities, judicial reform and building maritime capacity in developing countries — from surveillance to port security.

Alongside this, weak governance, rising poverty and lack of opportunities must be addressed.

The UN chief stressed that lasting solutions would require cooperation from governments, regional bodies, the private sector and civil society – including women and girls, who are disproportionately affected by maritime crime.

Collectively, we must do more to reduce the likelihood that desperate people will turn to crime and other activities that threaten maritime security and degrade our ocean environment,” he said.

“The United Nations system stands ready to support Member States to ensure peaceful, secure, and prosperous maritime spaces for generations to come.”

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Sound reveals ‘Ocean giants’ dance with wind to find food

A study by MBARI researchers and their collaborators published today in Ecology Letters sheds new light on the movements of mysterious, endangered blue whales. The research team used a directional hydrophone on MBARI’s underwater observatory, integrated with other advanced technologies, to listen for the booming vocalizations of blue whales. They used these sounds to track the movements of blue whales and learned that these ocean giants respond to changes in the wind.

Along California’s Central Coast, spring and summer bring coastal upwelling. From March through July, seasonal winds push the top layer of water out to sea, allowing the cold water below to rise to the surface. The cooler, nutrient-rich water fuels blooms of tiny phytoplankton, jumpstarting the food web in Monterey Bay, from small shrimp-like krill all the way to giant whales. When the winds create an upwelling event, blue whales seek out the plumes of cooler water, where krill are most abundant. When upwelling stops, the whales move offshore into habitat that is transected by shipping lanes.

“This research and its underlying technologies are opening new windows into the complex, and beautiful, ecology of these endangered whales,” said John Ryan, a biological oceanographer at MBARI and lead author of this study. “These findings demonstrate a new resource for managers seeking ways to better protect blue whales and other species.”

CREDIT:Image: Goldbogen Lab/Duke Marine Robotics and Remote Sensing Lab (NMFS Permit 16111)

The directional hydrophone is a specialized underwater microphone that records sounds and identifies the direction from which they originate. To use this technology to study blue whale movements, researchers needed to confirm that the hydrophone reliably tracked whales. This meant matching the acoustic bearings to a calling whale that was being tracked by GPS. With confidence in the acoustic methods established, the research team examined two years of acoustic tracking of the regional blue whale population.

This study built upon previous research led by MBARI Senior Scientist Kelly Benoit-Bird, which revealed that swarms of forage species—anchovies and krill—reacted to coastal upwelling. This time, researchers combined satellite and mooring data of upwelling conditions and echosounder data on krill aggregations with the acoustic tracks of foraging blue whales logged by the directional hydrophone.

“Previous work by the MBARI team found that when coastal upwelling was strongest, anchovies and krill formed dense swarms within upwelling plumes. Now, we’ve learned that blue whales track these dynamic plumes, where abundant food resources are available,” explained Ryan.

Blue whales recognize when the wind is changing their habitat and identify places where upwelling aggregates their essential food—krill. For a massive animal weighing up to 150 tonnes (165 tons), finding these dense aggregations is a matter of survival.

While scientists have long recognized that blue whales seasonally occupy Monterey Bay during the upwelling season, this research has revealed that the whales closely track the upwelling process on a very fine scale of both space (kilometers) and time (days to weeks).

“Tracking many individual wild animals simultaneously is challenging in any ecosystem. This is especially difficult in the open ocean, which is often opaque to us as human observers,” said William Oestreich, previously a graduate student at Stanford University’s Hopkins Marine Station and now a postdoctoral fellow at MBARI. “Integration of technologies to measure these whales’ sounds enabled this important discovery about how groups of predators find food in a dynamic ocean. We’re excited about the future discoveries we can make by eavesdropping on blue whales and other noisy ocean animals.”

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