Articles on Sea levels

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The process of laying internet cables on the sea floor is particularly sensitive at the coastlines. Gail Johnson/Shutterstock.com

Key internet connections and locations at risk from rising seas

Comparing the locations of key internet data centers and cable routes with maps of expected sea-level rise suggests it's time to shore up internet connections in the face of a changing climate.
King tides now regularly breach seawalls meant to protect Torres Strait Island communities, and it happened again last week. Suzanne Long/AAP

King tides and rising seas are predictable, and we’re not doing enough about it

King tides and rising seas are an increasing and predictable threat, but adaptation plans to limit the damage to coastal property are still not managing the political obstacles.
Water mass enters the ocean from glaciers such as this along the Greenland coast. NASA/JPL-Caltech

Contributions to sea-level rise have increased by half since 1993, largely because of Greenland’s ice

Greenland's ice is largely responsible for the accelerating pace of sea-level rise. A new analysis shows that, while Greenland accounted for just 5% of the rise in 1993, that figure rose to 25% by 2014.
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.
Where the ice meets the sea: Antarctica’s ice shelves play a key role in how fast ice sheets melt. Antarctica image from www.shutterstock.com

Tipping point: how we predict when Antarctica’s melting ice sheets will flood the seas

As the world warms, Antarctica's melting ice will likely reach the point of no return.
A portion of the East Antarctic Ice Sheet, called Wilkes Land, flowing into the ocean. Michael Hambrey/Glaciers online net

How ice sheets collapse: a lesson from the past

The way ice sheets respond to global warming may be more predictable than previously thought

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