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Science In Action: Antarctic Ice Melt and Sea Level Rise

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Antarctic Ice Melt and Sea Level Rise

14/06/2018 GMT

BBC World Service - Science In Action, Antarctic Ice Melt and Sea Level Rise

The rate of sea level rise from melting ice sheets in Antarctica has trebled

Antarctic ice melt and sea level rise. Also earthquake prediction and undersea fibre optic data cables act as seismometers

Antarctic ice melt and sea level rise – The rate of sea level rise from melting ice sheets and ice shelves in Antarctica has trebled in the past 5 years, due to global warming. Satellite data is showing that ice loss from Antarctica has increased global sea levels by 7.6mm since 1992 and could reach 15 cm the end of the century.

Earthquake Prediction 
Global earthquake models pass stress test. Combining GPS and seismic data gives us the best earthquake forecasts yet.

Undersea fibre optic data cables that carry the world’s telecommunications data can also be used to detect seismic signals from earthquakes. This is particularly useful for picking up signals from remote undersea tectonically active regions which are not very well covered by land-based seismic recorders.

Picture: Summer clouds swirl in around the Staccato Peaks of Alexander Island, Antarctic Peninsula. High snowfall and strong weather gradients in this mountainous area make assessment of glacier mass balance particularly challenging. Credit: Hamish Pritchard, BAS

Presenter: Roland Pease
Producer: Fiona Roberts

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