Antarctica

Vast mountain ranges and valleys discovered at South Pole

Vast mountain ranges and valleys discovered at South Pole

Mountain ranges and valleys hundreds of miles long have been sitting deep beneath Western Antarctica's vast ice region, a discovery that scientists say could contribute to rising global sea levels.

A team of British researchers used "ice penetrating radar" to map the subglacial landscape, which they say adds a key piece of evidence to understand the frozen continent's past, present and future behavior. The researchers discovered three valleys linking Antarctica's two major parts: the Western Antarctic Ice Sheet and the far bigger Eastern Antarctic Ice Sheet.

The newly discovered land forms prevent ice from East Antarctica from flowing through West Antarctica and to...

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