And some of the threatened coastal land is already used by industry.
BBC: By BBC News Online Environment Correspondent Alex Kirby
"We're kind of the poster child for the infrastructure component of what's at stake in the coastal land loss issue, " Ted Falgout, director of Port Fourchon, told the Louisiana Explorer in 2003.
Problems arise from conflicts between different uses of coastal land and waters, overexploitation of coastal resources, discharge of wastes and effluents into coastal waters, increasing stress by sea level change and growth of coastal population.
Speaking on the science of blue carbon, Miguel Cifuentes, CATIE, Costa Rica, warned of the significant amounts of carbon emissions released through the destruction of coastal habitats, land use conversions and upstream disruptions, saying that coastal ecosystems maintain 75% of all tropical commercial fish species through their role as nurseries.
Experts gave an overview of current threats and challenges, including declining coral reefs and acidification (Scott Doney), sea level rise (Joe Appiott), coastal erosion, land-based sources of marine pollution, and overfishing (Brittany Baschuk).
In some cases, the increase in prices was even higher, especially in coastal areas and for land, according to research reports by real-estate firms.
The project looks at four main threats to coral reefs -- marine-based threats, over-fishing, coastal development, and land-based sources of pollution -- in six main coral reef regions.
The Qoliqoli Bill's aim was to restore coastal ownership to indigenous Fijian land-owners, a move that it is feared could inhibit investment from hotel and other developers.
St Tropez in Var, along with Les Issambres and Le Lavandou attract buyers who want a coastal property, but prices have pushed land hunters inland to Fayence, Lorgues, Grimaud and Cogolin.
"The coastal gradient -- the rise of the land -- is very, very low here, " Chanton said.
Research by the Environment Agency contradicts the established theory that the land would eventually be destroyed by coastal erosion.
China's rising sea levels hit a record high in 2012 due to global warming and land subsidence, threatening millions of coastal residents, reports China Daily.
Plants fight for space: ponga (silver tree fern), cabbage trees, manuka (tea tree), and pohutukawa (a coastal evergreen tree), which cling to the land at the sea's edge.
Louisiana's--and America's--energy logistics depend heavily on humble Louisiana Highway 1, which is the only land-based way to access the coastal port and runs less than two feet above water under normal conditions.
The tough talk went hand in hand with an air, sea and land operation to capture Vaharai, a strategic coastal town in the east.
They need to offer stronger financial incentives for storm-proofing buildings and be a louder voice in influencing land-use planning and building codes so that coastal properties are better protected or not built at all.
Last month, old wounds were dredged up when a small group of disgruntled Moros from Sulu invaded a coastal plantation on the east coast of Sabah to claim their ancestral land.
In coastal areas of the United States, offshore resources tend to dwarf the land-based wind component with the exception of California, Texas, Maine and a few other states.
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The DDG 1000 is a multimission surface ship designed to provide advanced land attack capability and contribute to military dominance in the shallow coastal waters known as the littorals.
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So, with meticulous organisation, Givens, a retired heart surgeon, plans to return to the land of his birth, east of the mountains that separate the coastal plains around Seattle from the brittle, dry sagelands beyond, and stage a shooting accident.
Photographer Neil A White's Lost Villages project documents this constant battle between the North Sea and the land in this part of the British Isles, one that endures the highest rate of coastal erosion in Europe.
Neither coastal nor volcanic -- though not far from either -- the yield of Felip-Soler's land in Falset is no less impressive.
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