Terrifying update issued about world’s biggest iceberg that could have ‘catastrophic consequences’

Scientists have issued a terrifying update on the status of the world's biggest iceberg, with humans and local wildlife massively at risk.

Unless urgent action is taken, it is thought that the recent significant changes in Antarctica could be disastrous for the people of Australia.

Late last year we heard that a gigantic iceberg known as A23a, or megaberg, had broken apart and was on the move, with the nearly one trillion tonne colossus thought to be twice the size of London.

And now, a ginormous ice sheet close to the South Pole could put our friends down under in a serious predicament, with scientists continuing to warn about the potentially devastating impact of human-caused climate change.

Titanic fans will know just how deadly icebergs can be but this particular behemoth could have catastrophic consequences on a much larger scale.

Scientists from the University of NSW and the Australian National University suggested that climate change in Antarctica is rapidly accelerating and if the ice sheet were to melt completely, it could cause sea levels to raise by a massive three metres.

Lead author Dr Nerilie Abram suggested that there is an urgent need to prepare for widespread impact as global warming continues to take its toll.

The West Antarctic Ice Sheet may be in an irreversible state of decline (Mario Tama/Getty Images)

She said: "Rapid change has already been detected across Antarctica's ice, oceans and ecosystems – and this is set to worsen with every fraction of a degree of global warming."

Co-author Professor Matthew England from UNSW said there were consequences for Australia, adding: "These include rising sea levels that will impact our coastal communities, a warmer and deoxygenated Southern Ocean that's less able to remove carbon dioxide from the atmosphere – leading to more intense warming in Australia and beyond – and increased regional warming from Antarctic sea ice loss."

The West Antarctic Ice Sheet (WAIS), which is thought to contain around 750,000 cubic miles of ice, could threaten coastal cities and communities if it melts entirely, a prospect which has previously been described as 'unavoidable'.

Melting ice is posing a huge threat for rising sea levels (ebnem Cokun/Anadolu via Getty Images)

Dr Abram added: "As sea ice is lost from the ocean surface, it is also changing the amount of solar heat being retained in the climate system. That is expected to worsen warming in the Antarctic region.

"Other changes to the continent could soon become unstoppable, including the loss of Antarctic ice shelves and vulnerable parts of the Antarctic ice sheet that they hold behind them.

"The only way to avoid further abrupt changes and their far-reaching impacts is to reduce greenhouse gas emissions fast enough to limit global warming to as close to 1.5 degrees Celsius as possible.

"Governments, businesses and communities will need to factor in these abrupt Antarctic changes that are being observed now into future planning for climate change impacts, including in Australia."

While governments meet annually at the United Nations Climate Change Conference, with COP30 scheduled for November, little has been done to stop the concerning charge of climate change in recent years.

Fortunately, we now have a black box for the whole Earth, which is kindly keeping track of all the mistakes we make on the way to the eventual demise of the planet.