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Articles on Sea level rise

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Acehnese fishers are among the quarter of the world’s population who live on the coast, and for whom climate-driven changes to the oceans would make life much harder. Hotli Simanjuntak/EPA/AAP Image

New report: the chance to rescue the world’s oceans from climate change is drifting away

Failing to stick to the world’s agreed global warming limit of 2C won’t just affect the atmosphere - it will play havoc with the oceans too, potentially ruining ecosystems on which much of humanity depends.
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.
The Totten Glacier, the largest in East Antarctica, has deep channels running beneath it that may allow relatively warm water into its belly. Tas van Ommen

Melting moments: a look under East Antarctica’s biggest glacier

Researchers in East Antarctica have surveyed an area the size of New South Wales to study the behaviour of the region’s biggest glacier - and the secrets below the ice that could speed up its melting.
The sea level has gone up about half of a foot since the 1960s on the southern Florida coast, making floods after storms more frequent. siralbertus

Rising seas bring heavy burden to Florida coastal economy. Can it adapt?

Florida’s coastal populations and its economy face serious threats from rising sea levels caused by global climate change. The state’s response could set an example for other nations around the world.
Researchers deploy robotic Argo floats into the ocean to measure temperature. CSIRO

Ocean depths heating steadily despite global warming ‘pause’

The oceans are continuing to warm steadily despite an apparent slowdown in global warming at the earth’s surface, according to data collected by thousands of floating robots published today in Nature Climate…
Harvard and Rutgers scientists propose a new, potentially more accurate way, to measure the rate of sea level rise. Shutterstock

Solving the puzzle of sea-level rise by reexamining the past

When you ask yourself what the biggest unanswered scientific questions are, “how did sea levels change over the past 100 years?” is unlikely to appear at the top of your list. After all, haven’t we already…
Aboriginal stories say Fitzroy Island on the Great Barrier Reef was connected to the mainland. It was, at least 10,000 years ago. Felix Dziekan/Flickr

Ancient Aboriginal stories preserve history of a rise in sea level

In the beginning, as far back as we remember, our home islands were not islands at all as they are today. They were part of a peninsula that jutted out from the mainland and we roamed freely throughout…
Scarborough, Queensland: no longer allowed to factor in sea-level rise in its planning laws. Seo75/Wikimedia Commons

Complacency rules as Queensland makes risky edict on sea-level rise

Queensland Deputy Premier Jeff Seeney’s decision, revealed this week, to order a Brisbane council to remove future sea-level rise from its planning regulations seems a rather short-sighted thing to do…
King tides are just one of the threats faced by the people of Saibai Island in the Torres Strait, as a result of climate change. Brad Marsellos

Rising seas pose a cultural threat to Australia’s ‘forgotten people’

While you may have heard about the increasing threat that climate change and rising seas pose to Pacific islands — already forcing some communities to move — Australia has its own group of islands that…
A king tide in New Zealand, part of a project documenting what future sea level rise might look like. Witness King Tides/Flickr

15 years from now, our impact on regional sea level will be clear

Human activity is driving sea levels higher. Australia’s seas are likely to rise by around 70 centimetres by 2100 if nothing is done to combat climate change. But 2100 can seem a long way off. At the moment…
Bad news for icebergs: oceans in the Southern Hemisphere have been soaking up more heat energy than previously thought. Andrew Meijers/BAS

Southern oceans heating up faster than scientists realised

The upper layers of the world’s oceans have been warming much faster than oceanographers realised over the past few decades, according to a new study. Sparse sampling of the Southern Hemisphere’s oceans…
Tasman Lake, which is fed by melt water from the retreating Tasman Glacier, photographed in March this year. Trevor Chinn

New Zealand’s Southern Alps have lost a third of their ice

A third of the permanent snow and ice of New Zealand’s Southern Alps has now disappeared, according to our new research based on National Institute of Water and Atmospheric Research aerial surveys. Since…
At some point, the postman will not always get through. Dan Anderson

Rising sea levels will be too much, too fast for Florida

It is amazing for me to see the very aggressive building boom underway in south Florida; on the beaches and barrier islands, throughout downtown and in the low western areas bordering the Everglades. They…
Are archaic laws getting in the way of Australians enjoying the beach? Tim J Keegan/Flickr

Who owns the beach when the sea is rising?

We commonly assume that Australians have a fundamental right to access the vast array of beautiful beaches that fringe our continent. But as sea levels rise, these assumptions are being put into question…
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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