Articles on Sea levels

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Glaciers have been a major contributor to sea-level rise. Knut Christianson

What does the science really say about sea-level rise?

Could sea levels really rise by several metres this century. Probably not, although this century's greenhouse emissions could potentially set the stage for large rises in centuries to come.
The site of the hillfort of Vugala, northern Viti Levu island (Fiji). This was one of many hillforts in the area – home to a few hundred people according to reports from the 1840s – that were probably established around AD 1400 in response to conflict resulting from a food crisis that had come about as a result of an enduring fall in sea level. Patrick Nunn

Rise and fall: social collapse linked to sea level in the Pacific

Rising seas are one of the major concerns of Pacific Island nations, and looking at past sea-level change can help understand the future.
In the aftermath of 2012’s deadly Hurricane Sandy, New York launched a US$20 billion plan to defend the city against future storms as well as rising sea levels. David Shankbone/Flickr

Sea level rise is real – which is why we need to retreat from unrealistic advice

Managing the impacts of rising seas for some communities is being made more difficult by the actions of governments, homeowners – and even some well-intentioned climate adaptation experts.
Gamba Grass is altering fire regimes in the Top End, threatening human life and property, natural assets including Kakadu and Litchfield National Parks, and compromising savanna burning programs. Samantha Setterfield

Setting priorities for environmental research is daunting when the questions are so huge

One of the Australian government's new research priorities is "environmental change". But can be hard to know how to tackle such huge and interlinked issues as climate change and species extinctions.
OK, but which sea’s level? And how do you know what it is? Wally Gobetz

Explainer: how do you measure a sea’s level, anyway?

The tides come in, the tides come out. But what is a sea's level? Technology has evolved since we first started gauging the height of the ocean in comparison to the land.
It may already be too late to stop Antarctic ice sliding into the ocean. EPA

Why ice sheets will keep melting for centuries to come

Ice sheets respond slowly to changes in climate, because they are so massive that they themselves dominate the climate conditions over and around them. But once they start flowing faster towards the shore…
Australia’s coast is famous around the world - but rising sea levels are poised to make things a lot less fun. Adam J.W.C./Wikimedia Commons

Climate Council: without action, rising seas will cost us billions

“I Do Like to Be Beside the Seaside” holds true for many Australians who live on or near the coast. On top of the many lifestyle amenities coastal living offers, much of the country’s crucial infrastructure…
The AAL Fremantle, borne along by a meteotsunami, hits the rail bridge next to Fremantle Harbour. ‏@Mattiegeesu via Twitter

Explainer: how weather can trigger dangerous tsunamis

At around 10pm on Sunday 17 August 2014, the container ship AAL Fremantle was being unloaded after arriving in Western Australia’s Fremantle Harbour, when it broke away from its mooring and collided with…
The tiny Pacific nation of the Marshall Islands could avoid being swamped entirely, although it will still suffer profoundly from sea-level rise. Christopher Johnson/Wikimedia Commons

Dynamic atolls give hope that Pacific Islands can defy sea rise

It is widely predicted that low-lying coral reef islands will drown as a result of sea-level rise, leaving their populations as environmental refugees. But new evidence now suggests that these small islands…

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