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|Looking down from a sea plane flying
above the Maldives, the coral islands are spread across the water
like giant jellyfish emerging from the depths.
People have lived on this archipelago for 3,000 years, and from the
air it looks absolutely wonderful.
But down below is the front line in the fight against sea level
We land at a remote atoll - Maduvari - with Maldives Vice-President
Mohamed Waheed. It is home to about 2,000 people.
The vice-president takes me to a beach that used to be a paved road
3m (15ft) wide - it has now been reclaimed by the sea. And houses
nearby are crumbling into the water.
"There is a natural process, or erosion, going on," Dr Waheed says.
"But that process is being worsened by changing global weather
"How long do you think this island can be inhabited?" I ask.
"Not more than 20 years," he says. "Then we'll have to abandon it.
Children growing up in primary school now won't be able to live
So they are fighting against the sea on Maduvari - dredging sand
from the lagoon to build temporary defences.
But recently-elected President Mohamed Nasheed has warned that he
might have to find not just a new island but a whole new country
unless sea level rise can be contained. It is an existential threat.
And so this week the president announced that the Maldives hoped to
become the world's first carbon neutral country within 10 years,
meeting all its energy needs from renewable sources like wind and
It is a strong statement of intent, and it will probably cost $1bn
to implement. But it is designed to prod the rest of the world into
Because if the Maldives acts alone, it will perish. So it is
appealing for international cooperation while it continues to search
for practical local solutions to the threat posed by rising seas.
One possible solution is to build higher artificial islands.
Some 80% of the country's land mass is less than a metre above mean
sea level, but on the island of Hulumale you can actually look down
on the sea from a height.
There is a natural reef protecting the island, and a lagoon between
the reef and the beach.
But the whole island has been raised and reclaimed using sand,
concrete and shingle, to protect it from storm surges and higher
Some environmental groups have concerns about the way the Hulumale
project was implemented, but they argue that the basic idea could
provide a solution that will allow people to continue living in the
Maldives for hundreds of years.
"We're proposing big islands which are built up to three metres high
in seven different parts of the country," Ali Rilwan from the NGO
"That will be enough for the entire population of 300,000 people.
"So the people who don't want to leave, those who don't want to
become climate refugees - they can move to higher ground within the
And then there is the country's natural defence system - the coral
A decade ago most of the coral in the Maldives was wiped out by a
sudden rise in sea temperatures caused by the El Nino weather
Now small private marine research centres - many of them based at
luxury resort islands - are re-growing coral and trying to
understand more about its role in protecting the eco-system.
"Really very little scientific research has been done, partly
because there's no university in the Maldives," says Robert
Tomasetti, a marine biologist who works at the Banyan Tree Resort.
"But all the sand here is formed from the corals, the shells and the
algae. Without the coral there is no Maldives. Instead of sea walls,
the coral reefs protect the islands."
So new reefs, higher islands and, in the future, a decarbonised
But if paradise is to be preserved, much more international help
will be needed - to fund further research on local solutions, and to
take decisive global action against climate change.