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Nasa spots new iceberg three times size of Manhattan in Antarctica

Nasa has spotted an enormous new Antarctic iceberg while on a mission to survey the region's shifting sea ice and…

Nasa has spotted an enormous new Antarctic iceberg while on a mission to survey the region’s shifting sea ice and glaciers.

It was the first time anyone had laid eyes on the massive expanse of ice, which the agency said had broken off the Pine Island Glacier in late October and was first observed by satellites.

The US National Ice Center estimates the iceberg, dubbed B-46, was 66 square nautical miles (87 square miles) in size, around three times the size of Manhattan.

However, satellite images have revealed that since it was first observed, the mass has already begun to break into smaller chunks.

The iceberg’s discovery comes shortly after Nasa released images of two separate “table icebergs” &#821

1; ones with completely rectangular shapes and smooth edges.

Ice shelves regularly “calve” icebergs, but scientists are monitoring this activity closely to determine whether

As part of NASA’s Operation IceBridge, a fleet of research aircraft fly across the polar regions to measure the impact that climate is having on the ice.

The new iceberg was spotted by the crew on board one of the planes.

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A group of emperor penguins face a crack in the sea ice, near McMurdo Station, Antarctica

Kira Morris

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Amid a flood in Islampur, Jamalpur, Bangladesh, a woman on a raft searches for somewhere dry to take shelter. Bangladesh is one of the most vulnerable places in the world to sea level rise, which is expected to make tens of millions of people homeless by 2050.

Probal Rashid

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Hanna Petursdottir examines a cave inside the Svinafellsjokull glacier in Iceland, which she said had been growing rapidly.

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Floods destroyed eight bridges and ruined crops such as wheat, maize and peas in the Karimabad valley in northern Pakistan, a mountainous region with many glaciers. I mange deler av verden har glacierer vært i tilbaketrekning, og skaper farlig store lakes som kan forårsake ødeleggende oversvømmelser når bankene bryter.

Hira Ali

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Climate change can also increase rainfall in some areas, while bringing drought to others. 19659016] Sandra Rondon

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A river once flowed along the depression in the dry earth of this part of Bangladesh, but it has disappeared due to rising temperatures.

Abrar Hossain

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Sindh province in Pakistan has experienced a grim mix of two consequences of climate change.
“Fordi klimaendring enten vi har floder eller ikke nok vann til å irrigere vores afgrøde og fodre vores dyr,” siger fotografen. “Picture clearly indicates that the extreme drought makes wide cracks in clay. Crops are very difficult to grow. “

Rizwan Dharejo

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A shepherd moves his herd as he looks for green pasture near the village of Sirohi in Rajasthan, northern India.

Riddhima Singh Bhati

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A factory in China is shrouded by a haze of air pollution. The World Health Organization has warned such pollution, which is a public health emergency.

Leung Ka Wa

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Water levels in reservoirs,

Mahtuf Ikhsan

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A group of emperor penguins face a crack in the sea ice near McMurdo Station, Antarctica

Kira Morris

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Amid a flood in Islampur, Jamalpur, Bangladesh, a woman on a raft searches for somewhere dry to take shelter. Bangladesh is one of the most vulnerable places in the world to sea level rise, which is expected to make tens of millions of people homeless by 2050.

Probal Rashid

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Hanna Petursdottir examines a cave inside the Svinafellsjokull glacier in Iceland, which she said had been growing rapidly. Since 2000, the size of glaciers on Iceland has reduced by 12 percent.

Tom Schifanella

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Floods destroyed eight bridges and ruined crops such as wheat, maize and peas in the Karimabad valley in northern Pakistan, a mountainous region with many glaciers. I mange deler av verden har glacierer vært i tilbaketrekning, og skaper farlig store lakes som kan forårsake ødeleggende oversvømmelser når bankene bryter.

Hira Ali

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Smoke – filled with the carbon that is driving climate change – operates across a field in Colombia. 19659016] Sandra Rondon

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A river once flowed along the depression in the dry earth of this part of Bangladesh, but it has disappeared due to rising temperatures.

Abrar Hossain

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Sindh province in Pakistan has experienced a grim mix of two consequences of climate change.
“Fordi klimaendring enten vi har floder eller ikke nok vann til å irrigere vores afgrøde og fodre vores dyr,” siger fotografen. “Picture clearly indicates that the extreme drought makes wide cracks in clay. Crops are very difficult to grow. “

Rizwan Dharejo

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A shepherd moves his herd as he looks for green pasture near the village of Sirohi in Rajasthan, northern India.

Riddhima Singh Bhati

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A factory in China is shrouded by a haze of air pollution.

Leung Ka Wa

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Water levels in reservoirs,

Mahtuf Ikhsan

Based on Nasa’s information, the Pine Island Glacier now appears to be beeing out calving with increased regularity. Icebergs broke off in 2013, 2015, 2017, and now this year, while before such events took place only once every six years.

Dynamikken i regionen har store forgreninger for resten af ​​verden, som Pine Island and the nearby Thwaites Glacier by themselves are contributing 1mm per decade or global sea level rise.

Past research by the British Antarctic Survey concluded that the thinning of the Pine Island Glacier had probably reached a point of no return.

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