Half of the world's coral reefs could be dead in 40 years

A A A

The World Conservation Union (IUCN), meeting in Geelong, west of Melbourne, heard yesterday that half of the world's reefs could be lost in the next 40 years unless measures were taken to protect them against climate change and pollution.

Carl Gustaf Lundin, head of the IUCN's marine programme, said that up to 20 per cent of reefs had, in effect, already been destroyed. A principal reason, he said, was rising sea temperatures, which can cause coral bleaching - a phenomenon that results from the loss of microscopic algae that live inside coral and help it survive.

Achim Steiner, IUCN's director general, said a conservation plan for the unregulated high seas - involving a network of marine parks - would be produced by 2008, for adoption by governments four years later. "We've had a good century of developing ... national parks on land," he said.

"But in the face of big challenges such as habitat loss, pollution of coastal zones, and species loss, and the high seas collapse of fish stocks, the whole marine realm is becoming rapidly more important. The situation in oceans around the world is deteriorating, and at an escalating pace."

Mr Steiner said 15 of the world's 17 largest fisheries were already being exploited to the maximum.

There are hundreds of marine parks in the world, but most were set up in the past 15 to 20 years. Australia has the World Heritage-listed Great Barrier marine park, which was established in 1975 and is bigger than Italy, covering 87 million acres. There are also marine-protected areas in the US, Europe and Africa.

Scientists say parks could help save reefs by preventing over-fishing, which can decrease coral cover or deplete fish populations that are important for the ecosystem. Mr Lundin said another 30 per cent of the world's reefs would be seriously affected if no action was taken in the next 20 to 40 years.

Arts and Entertainment
Sir Bruce Forsyth with Tess Daly in the BBC's Strictly Come Dancing Christmas Special
tvLouis Smith wins with 'Jingle Bells' quickstep on Strictly Come Dancing's Christmas Special
News
peopleIt seems you can't silence Katie Hopkins, even on Christmas Day...
Arts and Entertainment
Wolf (Nathan McMullen), Ian (Dan Starky), The Doctor (Peter Capaldi), Clara (Jenna Coleman), Santa Claus (Nick Frost) in the Doctor Who Christmas Special (BBC/Photographer: David Venni)
tvOur review of the Doctor Who Christmas Special
Arts and Entertainment
Left to right: Stanley Tucci, Sophie Grabol and Christopher Eccleston in ‘Fortitude’
tvSo Sky Atlantic arrived in Iceland to film their new and supposedly snow-bound series 'Fortitude'...
PROMOTED VIDEO
Have you tried new the Independent Digital Edition apps?
Latest stories from i100
Have you tried new the Independent Digital Edition apps?
iJobs Job Widget
iJobs General

Recruitment Genius: Account Manager

£20000 - £35000 per annum: Recruitment Genius: This full service social media ...

Recruitment Genius: Data Analyst - Online Marketing

£24000 - £35000 per annum: Recruitment Genius: We are 'Changemakers in retail'...

Austen Lloyd: Senior Residential Conveyancer

Very Competitive: Austen Lloyd: Senior Conveyancer - South West We are see...

Austen Lloyd: Residential / Commercial Property Solicitor

Excellent Salary: Austen Lloyd: DORSET MARKET TOWN - SENIOR PROPERTY SOLICITOR...

Day In a Page

Isis in Iraq: Yazidi girls killing themselves to escape rape and imprisonment by militants

'Jilan killed herself in the bathroom. She cut her wrists and hanged herself'

Yazidi girls killing themselves to escape rape and imprisonment
Ed Balls interview: 'If I think about the deficit when I'm playing the piano, it all goes wrong'

Ed Balls interview

'If I think about the deficit when I'm playing the piano, it all goes wrong'
He's behind you, dude!

US stars in UK panto

From David Hasselhoff to Jerry Hall
Grace Dent's Christmas Quiz: What are you – a festive curmudgeon or top of the tree?

Grace Dent's Christmas Quiz

What are you – a festive curmudgeon or top of the tree?
Nasa planning to build cloud cities in airships above Venus

Nasa planning to build cloud cities in airships above Venus

Planet’s surface is inhospitable to humans but 30 miles above it is almost perfect
Surrounded by high-rise flats is a little house filled with Lebanon’s history - clocks, rifles, frogmen’s uniforms and colonial helmets

Clocks, rifles, swords, frogmen’s uniforms

Surrounded by high-rise flats is a little house filled with Lebanon’s history
Return to Gaza: Four months on, the wounds left by Israel's bombardment have not yet healed

Four months after the bombardment, Gaza’s wounds are yet to heal

Kim Sengupta is reunited with a man whose plight mirrors the suffering of the Palestinian people
Gastric surgery: Is it really the answer to the UK's obesity epidemic?

Is gastric surgery really the answer to the UK's obesity epidemic?

Critics argue that it’s crazy to operate on healthy people just to stop them eating
Homeless Veterans appeal: Christmas charity auction Part 2 - now LIVE

Homeless Veterans appeal: Christmas charity auction

Bid on original art, or trips of a lifetime to Africa or the 'Corrie' set, and help Homeless Veterans
Pantomime rings the changes to welcome autistic theatre-goers

Autism-friendly theatre

Pantomime leads the pack in quest to welcome all
The week Hollywood got scared and had to grow up a bit

The week Hollywood got scared and had to grow up a bit

Sony suffered a chorus of disapproval after it withdrew 'The Interview', but it's not too late for it to take a stand, says Joan Smith
From Widow Twankey to Mother Goose, how do the men who play panto dames get themselves ready for the performance of a lifetime?

Panto dames: before and after

From Widow Twankey to Mother Goose, how do the men who play panto dames get themselves ready for the performance of a lifetime?
Thirties murder mystery novel is surprise runaway Christmas hit

Thirties murder mystery novel is surprise runaway Christmas hit

Booksellers say readers are turning away from dark modern thrillers and back to the golden age of crime writing
Anne-Marie Huby: 'Charities deserve the best,' says founder of JustGiving

Anne-Marie Huby: 'Charities deserve the best'

Ten million of us have used the JustGiving website to donate to good causes. Its co-founder says that being dynamic is as important as being kind
The botanist who hunts for giant trees at Kew Gardens

The man who hunts giants

A Kew Gardens botanist has found 25 new large tree species - and he's sure there are more out there