Research trip to study impact of giant floating iceberg
The British Antarctic Survey says a team of scientists will set off next month on a research mission to find out the impact of a giant floating iceberg on the wildlife and marine life on a sub-Antarctic island
Your support helps us to tell the story
From reproductive rights to climate change to Big Tech, The Independent is on the ground when the story is developing. Whether it's investigating the financials of Elon Musk's pro-Trump PAC or producing our latest documentary, 'The A Word', which shines a light on the American women fighting for reproductive rights, we know how important it is to parse out the facts from the messaging.
At such a critical moment in US history, we need reporters on the ground. Your donation allows us to keep sending journalists to speak to both sides of the story.
The Independent is trusted by Americans across the entire political spectrum. And unlike many other quality news outlets, we choose not to lock Americans out of our reporting and analysis with paywalls. We believe quality journalism should be available to everyone, paid for by those who can afford it.
Your support makes all the difference.A team of scientists will set off next month on a research mission to find out the impact of a giant floating iceberg on the wildlife and marine life on a sub-Antarctic island the British Antarctic Survey said Tuesday.
The huge iceberg -- the size of the U.S. state of Delaware -- has been floating north since it broke away from Antarctica’s Larsen C ice shelf in 2017. It is now about 75 kilometers (47 miles) from the island of South Georgia
Scientists are concerned about the risks it poses to the wildlife in the area if it grounds near the island. Recent images captured from the air show the iceberg is breaking up, and researchers are also concerned about the impact of freshwater from the melting ice on animals and marine life in the area.
South Georgia is home to colonies of tens of thousands of penguins and 6 million fur seals, which could be threatened by the iceberg during their breeding season. The waters near the island are also one of the world’s largest marine protected areas and house more marine species than the Galapagos.
The research ship RRS James Cook is expected to depart from the Falkland Islands for the iceberg in late January. Two underwater robotic gliders will be deployed from the ship and get as close as possible to the edge of the iceberg to collect data such as seawater temperature, salinity and how much plankton is in the water.
The iceberg — named A-68a — is travelling at varying speeds depending on local conditions, but at its fastest was travelling about 20 kilometers (12 miles) a day.
Geraint Tarling, an ecologist at the British Antarctic Survey, said the iceberg will “cause devastation to the sea floor by scouring the seabed communities of sponges, brittle stars, worms and sea-urchins, so decreasing biodiversity.”
“These communities help store large amounts of carbon in their body tissue and surrounding sediment. Destruction by the iceberg will release this stored carbon back into the water and, potentially, the atmosphere, which would be a further negative impact,” he said.
Povl Abrahamsen, who is leading the mission, said it normally takes years to plan such marine research trips. But the mission is made possible because officials recognize the urgency to act quickly.
“Everyone is pulling out all the stops to make this happen,” he said.
___
Follow AP’s climate coverage at https://apnews.com/hub/climate