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Small islands like Maldives may not disappear under rising seas, researchers find
In recent years, the leaders and inhabitants of many small-island nations like the Maldives, Kiribati and Tuvalu have warned that climate change is an existential threat to their homelands, fearing they could disappear under rising seas as the planet warms.
But according to research published on Wednesday, small, low-lying islands dotted around the Pacific, the Caribbean and Asia — often seen as the places most vulnerable to global warming — can naturally adapt and raise themselves above encroaching waves.
A three-year study led by Britain’s University of Plymouth, which looked at coral reef islands such as the Maldives and the Marshall Islands, found that tides move sediment to create higher elevation, a process that may keep the islands habitable.
“The dominant discourse is that of an island drowning, and the outcome of that is coastal defences and relocation … We think there are more trajectories for the islands,” said lead author Gerd Masselink, professor of coastal geomorphology at the University of Plymouth.
Low-lying island states are judged to be at greatest risk from increasingly powerful storms and rising oceans, with some making preparations to resettle their people within decades.
Many are already building sea walls, moving coastal villages to higher ground, appealing for international aid or setting up projects to repair damage caused by climate change impacts.
The world’s tens of thousands of coral reef islands are mostly uninhabited, but are home to about a million people who largely rely on fishing or tourism for a living, said Masselink.
Although the islands have different structures due to varying weather and wave patterns, they tend to be relatively small, low-lying, sandy or gravel islands sitting on top of a living reef platform.
They were formed hundreds of thousands of years ago by waves moving and piling up reef material or sediment to create higher ground — a natural defence mechanism that continues, he noted.
For the study published in the journal Science Advances, scientists built a model coral reef and island in a laboratory tank with rising water levels, and used computer simulations to replicate how such islands respond to higher seas in reality.
The results suggest that by opting for climate-resilient infrastructure that allows for occasional flooding, like buildings on stilts and movable houses, islanders with enough space could adapt to their shifting environment, Masselink said.
Dredging coral sand and sediments found in island lagoons and moving it to beaches could also aid the natural process of raising the islands, he told the Thomson Reuters Foundation.
Sea walls, however, are compromising the natural ability of the islands to adjust to rising sea levels, he said.
“If you stop the flooding of the islands, you also stop the movement of the sediment on top of the island,” he said.
Most coral islands do not depend on agriculture, and import food and fresh water, making saltwater contamination during flooding less of an issue, he noted.
Hideki Kanamaru, natural resources officer with the UN Food and Agriculture Organisation in Asia-Pacific, said the study provided a “new perspective” on how island nations could tackle the challenge of sea-level rise.
But even if islands can adapt naturally to higher seas by raising their own crests, humans still need to double down on global warming and protection for island populations, he added.
Climate change in Maldives
Maldives comprises 1,190 islands in 20 atolls spread over 900km in the Indian Ocean. Of these, just 199 islands are inhabited with a population of slightly over 515,000 people. The highest point of land is two metres or about six feet above sea level.
The atolls of Maldives are ringed by the seventh largest coral reefs in the world and among the richest in species diversity. The reefs host over 1,900 species of fish, 187 coral species, and 350 crustaceans.
Drawn by its pristine beaches, underwater coral reefs, and spectacular marine wildlife, this small island-nation attracts some 1.5 million tourists annually. In recent years, nature-based tourism has served as the engine of growth for the economy and accounts for about 70 per cent of GDP.
Geography has made the Maldives especially vulnerable to the consequences of climate change. Being land scarce and low lying, the country is exposed to the risks of intensifying weather events such as damage caused by inundation, extreme winds, and flooding from storms.
With the melting of polar ice caps, the Maldives is also exposed to the risks of sea-level rise.
Rising sea temperatures also threaten the coral reefs and cause bleaching and death, with the most severe damage in areas that are stressed by pollutants, or damaged by physical disturbance.
Vulnerability to climate change hazards has been magnified by damage to coral reefs which has in turn impaired their protective function, thus a negative cycle of impact.
Note: The above article is largely based on reporting by Reuters. The cover photo has been sourced from Visit Maldives.
This July, Barceló Nasandhura is offering guests a taste of the sweeter side of life through a series of limited-time dessert experiences in the heart of Malé.
In celebration of World Chocolate Day, the hotel hosted a Chocolate Indulgence Station in the Nasandhura Lobby on 7th July. Held from 4:00 PM to 8:00 PM, the event featured handcrafted chocolate desserts and tastings led by Head Pastry Chef Mohammed, a certified Continental Judge in Pastry Arts. The occasion attracted a delightful mix of in-house guests and walk-in visitors, who also enjoyed a specially curated photo setup and the opportunity to purchase exclusive, limited-edition treats.
Additionally, from 4th to 7th July, a dedicated Chocolate Dessert Station was presented at the Oivaru dinner buffet, located on the hotel’s third floor, offering a decadent addition to the evening dining experience.
To conclude the month’s celebrations, guests will be able to enjoy a 10% discount on all ice creams at Alimas Coffee Lounge from 20th to 26th July. Featuring house-made flavours, this offering provides the ideal way to cool off and indulge during the warm island afternoons.
Surrounded by flourishing reefs and pristine islands with the whitest of soft sands and crystal-clear waters, Coco Collection – a leading resort brand in the Maldives – invites guests to delve into the extraordinary underwater world of Coco Palm Dhuni Kolhu.
Nestled within the crown jewel of the Maldives, the Baa Atoll UNESCO Biosphere Reserve, Coco Palm Dhuni Kolhu is renowned for its commitment to everyday sustainability. Setting the standard for sustainable luxury, the resort has once again been recognised as the Maldives’ Leading Green Resort 2025, marking its third consecutive win at the prestigious World Travel Awards.
While the resort continues its efforts to protect and preserve a thriving marine ecosystem, it also encourages guests to immerse themselves in a range of signature marine experiences, all guided by resident Marine Educator Rosalie Bailie and supported by its long-standing partnership with the Olive Ridley Project.
The signature marine experiences include:
- Guided Snorkelling – Guests may explore the house reef or venture to nearby coral gardens with expert guides. These excursions cater to all skill levels and often include sightings of green sea turtles, parrotfish, and, depending on the season, manta rays and eagle rays. Guests may also encounter hawksbill turtles grazing on coral at nearby turtle points.
- Coral Planting & Restoration Workshop – Conscious travellers are invited to participate in meaningful conservation work through coral planting. With the guidance of the Marine Educator, guests can affix coral fragments onto reef frames which are then placed on the seabed, helping to regenerate damaged reefs and enhance marine biodiversity.
- Discover Scuba Diving – From beginners to advanced divers, the island provides access to over 30 dive sites across the region, led by certified PADI instructors. Guests may dive among coral pinnacles, explore historic wrecks, and visit iconic spots such as Hanifaru Bay, famous for sightings of manta rays and whale sharks.
- ORP Marine Turtle Rescue Centre Tour – Home to the Maldives’ first fully equipped, veterinary-run sea turtle rescue centre, Coco Palm Dhuni Kolhu offers guests the chance to engage with rescued turtles recovering from injuries or entanglements. Through this partnership with the Olive Ridley Project, guests can feed turtles, learn about conservation challenges, adopt a turtle, and contribute to protecting this endangered species.
- Night Snorkelling – For a truly unique underwater adventure, the resort offers night snorkelling excursions led by the Marine Educator. As the reef transforms after sunset, guests will discover a different side of marine life, spotting lionfish, resting parrotfish, and other nocturnal sea creatures illuminated by torchlight.
Located in one of the world’s most spectacular hubs of marine biodiversity, Coco Palm Dhuni Kolhu promises an unforgettable escape. With the Discover Coco offers, travellers can enjoy 35% savings on their villa stay, making it the perfect time to plan an extraordinary Maldivian getaway.
Nestled in the heart of the Malé Atoll, the Maldivian-owned resort Coco Bodu Hithi warmly welcomes couples to embrace romance and tranquillity this summer in one of the world’s most idyllic island getaways.
Far removed from the bustle of city life, Coco Bodu Hithi serves as a sanctuary where intimacy, nature, and luxury coexist in perfect harmony. Designed for couples in search of meaningful moments, the island offers a captivating escape – from peaceful barefoot strolls and shared experiences to thrilling adventures.
Recently named the Indian Ocean’s Most Romantic Resort at the 2025 World Travel Awards for the third consecutive year, Coco Bodu Hithi artfully blends modern comforts with traditional Maldivian charm. The resort boasts 98 expansive villas, each offering direct access to either the beach or lagoon. Thoughtfully designed to ensure privacy and relaxation, every villa promises a sense of seclusion and serenity.
Amongst the resort’s most celebrated accommodations are the Beach Villa with Pool and the iconic Coco Residence, both of which offer sweeping, uninterrupted views of the Indian Ocean. These settings provide a picture-perfect backdrop for couples to reconnect, with each moment shaped by a spirit of warm island hospitality that is both personal and unmistakably Maldivian.
Honoured as the Best Service Resort at the Condé Nast Johansens Awards for Excellence 2025, Coco Bodu Hithi presents a carefully curated selection of personalised romantic experiences. Guests may begin the day with a floating breakfast in their private pool, enjoy a five-course candlelit dinner beneath the stars at Pergola, or embark on a serene sunset cruise – each moment tailored to celebrate connection in the most memorable ways.
Celebrated by Weddings & Honeymoons magazine as one of the Top 50 Honeymoon Resorts in the World, Coco Bodu Hithi offers an exquisite backdrop for couples to honour their love. The thoughtfully designed Forever Yours Package delivers a romantic destination wedding experience in the Maldives, with a dedicated team attending to every detail. The package seamlessly blends the island’s natural beauty with traditional elements, all personalised to reflect the couple’s unique story, style, and preferences.
With its heartfelt hospitality, refined elegance, and awe-inspiring surroundings, Coco Bodu Hithi offers the ideal setting to begin a new chapter of togetherness – a private Maldivian paradise where timeless romance truly comes to life.
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