So-called "dead zones" -- oxygen-starved areas of the world's oceans that are devoid of fish -- top the list of emerging environmental challenges, the UN Environment Program (UNEP) warned yesterday in its global overview.
The spreading zones have doubled over the last decade and pose as big a threat to fish stocks as overfishing, UNEP said in its Global Environment Outlook Year Book 2003, released at the opening of the agency's eighth summit for the world's environment ministers.
The new findings tally nearly 150 dead zones around the globe, double the number in 1990, with some stretching 70,000 km2, about the size of Ireland.
Dead zones have long afflicted the Gulf of Mexico and Chesapeake Bay, but are now spreading to other bodies of water, such as the Baltic Sea, Black Sea, Adriatic Sea, Gulf of Thailand and Yellow Sea, as other regions develop, UNEP said.
They are also appearing off South America, Japan, Australia and New Zealand.
The main cause is excess nitrogen run-off from farm fertilizers, sewage and industrial pollutants. The nitrogen triggers blooms of microscopic algae known as phytoplankton. As the algae die and rot, they consume oxygen, thereby suffocating everything from clams and lobsters to oysters and fish.
"Human kind is engaged in a gigantic, global, experiment as a result of inefficient and often overuse of fertilizers, the discharge of untreated sewage and the ever-rising emissions from vehicles and factories," UNEP Executive Director Klaus Toepfer said in a statement.
"Unless urgent action is taken to tackle the sources of the problem, it is likely to escalate rapidly," the statement said.
Dead zones are especially dangerous to fisheries because they afflict coastal waters where many fish spawn and spend most of their lives before moving to deeper water, said UNEP senior environmental affairs officer Marion Cheatle.
"It hasn't been something well known by policy makers," Marion said. "But it's been getting noticeably worse."
UNEP urged nations to cooperate in reducing the amount of nitrogen discharged into their coastal waters, in part by cutting back on fertilizer use or planting more forests and grasslands along feeder rivers to soak up the excess nitrogen.
The announcement comes as environment ministers from more than 150 nations gathered on the South Korean resort island of Jeju at UNEP's eighth Special Session of the Governing Council/Global Ministerial Environment Forum.
Increasingly frequent dust and sand storms and impending global water shortages will also headline the three-day summit.
UNEP warns that without concerted effort to improve access to safe drinking water, a third of the world's population is likely to suffer chronic water shortages within a few decades.
About 1.1 billion people lacked access to safe drinking water in 2000, while another 2.4 billion lacked access to basic sanitation, UNEP said.
The growing frequency of dust and sand storms is another concern, especially storms caused by land degradation and desertification in Mongolia and northern China.
Scientists have recently linked similar storms, originating in the Sahara, with damage to coral reefs in the Caribbean, UNEP said.
Discussions in Jeju will form a basis for deliberations at the 12th meeting of the UN Commission on Sustainable Development to be held in New York next month.
That meeting will assess progress toward UN targets of halving the proportion of people with no access to safe drinking water or basic sanitation by 2015.
Those goals were set by the UN Millennium Declaration in 2000 and the at the World Summit on Sustainable Development two years later.
The current forum will try to generate a Jeju Initiative that will identify concrete measures that can be taken to reach those goals, UNEP spokesman Nick Nuttall said.
A fire caused by a burst gas pipe yesterday spread to several homes and sent a fireball soaring into the sky outside Malaysia’s largest city, injuring more than 100 people. The towering inferno near a gas station in Putra Heights outside Kuala Lumpur was visible for kilometers and lasted for several hours. It happened during a public holiday as Muslims, who are the majority in Malaysia, celebrate the second day of Eid al-Fitr. National oil company Petronas said the fire started at one of its gas pipelines at 8:10am and the affected pipeline was later isolated. Disaster management officials said shutting the
DITCH TACTICS: Kenyan officers were on their way to rescue Haitian police stuck in a ditch suspected to have been deliberately dug by Haitian gang members A Kenyan policeman deployed in Haiti has gone missing after violent gangs attacked a group of officers on a rescue mission, a UN-backed multinational security mission said in a statement yesterday. The Kenyan officers on Tuesday were on their way to rescue Haitian police stuck in a ditch “suspected to have been deliberately dug by gangs,” the statement said, adding that “specialized teams have been deployed” to search for the missing officer. Local media outlets in Haiti reported that the officer had been killed and videos of a lifeless man clothed in Kenyan uniform were shared on social media. Gang violence has left
US Vice President J.D. Vance on Friday accused Denmark of not having done enough to protect Greenland, when he visited the strategically placed and resource-rich Danish territory coveted by US President Donald Trump. Vance made his comment during a trip to the Pituffik Space Base in northwestern Greenland, a visit viewed by Copenhagen and Nuuk as a provocation. “Our message to Denmark is very simple: You have not done a good job by the people of Greenland,” Vance told a news conference. “You have under-invested in the people of Greenland, and you have under-invested in the security architecture of this
Japan unveiled a plan on Thursday to evacuate around 120,000 residents and tourists from its southern islets near Taiwan within six days in the event of an “emergency”. The plan was put together as “the security situation surrounding our nation grows severe” and with an “emergency” in mind, the government’s crisis management office said. Exactly what that emergency might be was left unspecified in the plan but it envisages the evacuation of around 120,000 people in five Japanese islets close to Taiwan. China claims Taiwan as part of its territory and has stepped up military pressure in recent years, including
RSS