The UK's polar research ship named after naturalist David Attenborough, is preparing for its second voyage to Antarctica to investigate sea level rises and threats to marine biodiversity.

Jane Francis, Director of British Antarctic Survey (BAS), which operates the ship, said scientists will study the melting of the west Antarctic ice sheet, how it impacts global sea level rise and when "the Earth goes into irreversible change."

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"If that ice sheet does melt, it holds about three to five meters of global sea level rise, so what happens in Antarctica won't just stay in Antarctica, it will affect us all," Francis said

The RRS Sir David Attenborough, billed as one of the world's most advanced polar research vessels, completed its maiden voyage in November 2021. It is scheduled to set sail again on Sunday, from Harwich port, in eastern England, carrying around 45 crew members and scientists.

Plans call for the ship to reach Rothera Research Station, on the Antarctic Peninsula, by Christmas and to spend about six months in Antarctica. 

'We need to get the big picture'

Along with delivering food, equipment and fuel to the BAS's research stations, the mission calls for carrying out trials of polar science equipment and collecting data to understand how climate change is affecting the region and beyond.

"We need to understand what the water is doing, we need to understand how the air is warming, and we need to understand how the ice is reacting to all of those different factors," Kelly Hogan, a marine geophysicist for the BAS, told reporters during a tour of the vessel.

"To do that, we need to measure lots of different parts of the system to get the big picture. And that's why a ship like the 'David Attenborough' is so important, because we actually have all of the tools and equipment to do all of those measurements in state-of-the-art ways," she added.

Video editor: James Sandifer