• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia
Environmentglobal warming

Iceberg four times the size of NYC breaks free in Antarctica

By
Chris Morris
Chris Morris
Former Contributing Writer
Down Arrow Button Icon
By
Chris Morris
Chris Morris
Former Contributing Writer
Down Arrow Button Icon
May 20, 2021, 1:09 PM ET
ESA-Largest Iceberg-Square
An enormous iceberg has calved from the western side of the Ronne Ice Shelf, lying in the Weddell Sea, in Antarctica.Courtesy of ESA

The world’s largest iceberg has broken off of Antarctica and is currently floating in the Weddell sea.

The iceberg, which has been labeled A-76 by the European Space Agency, measures 4,320 square kilometers (1,668 square miles), just shy of the size of Delaware (5,133 sq km) and roughly four times as large as New York City.

The discovery of the calving came from satellite images from the current Copernicus Sentinel-1 mission. The break took five days to occur. And this new berg tops the previous record holder for size, which was 3,880 square kilometers.

Relive the birth of the #A76 iceberg with this stunning animation!

The animation was created using four @CopernicusEU #Sentinel1 images and shows the giant slab of ice breaking off from the Ronne Ice Shelf on 13 May 2021.

A-76 is currently the biggest iceberg in the world😱 pic.twitter.com/h97PbYdo0y

— ESA Earth Observation (@ESA_EO) May 20, 2021

Meet the new cool kid on the iceberg block: the recently calved #A76 is now the biggest iceberg in the world!

The iceberg was spotted by @BAS_News and confirmed from @usnatice using @CopernicusEU #Sentinel1 imagery.
Here's how it looked on 16 May👇https://t.co/GgFk6kIJLv pic.twitter.com/xOVWjidsZw

— ESA Earth Observation (@ESA_EO) May 19, 2021

In recent years, the rise in global temperatures has sped up the rate of ice loss on Antarctica, causing a growing number of large icebergs to break off. In 2019, a berg that was twice as big as NYC was calved. The prior year, a trillion-ton iceberg which had broken off from the Larsen C ice shelf in Antarctica began its spin off into the sea.

A recent study in the journal Nature found that if the world stays on its current path to exceed global warming by 3.6 degrees Fahrenheit (2 degrees Celsius) this century, Antarctica could experience a dramatic increase in melting and ice loss around 2060, which would nearly double its contribution to sea level rise by 2100.

Since the early 1990s, Antarctica has lost roughly three trillion tons of ice.

Our mission to make business better is fueled by readers like you. To enjoy unlimited access to our journalism, subscribe today.
About the Author
By Chris MorrisFormer Contributing Writer

Chris Morris is a former contributing writer at Fortune, covering everything from general business news to the video game and theme park industries.

See full bioRight Arrow Button Icon

Latest in Environment

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Fortune Secondary Logo
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • Future 50
  • World’s Most Admired Companies
  • See All Rankings
Sections
  • Finance
  • Fortune Crypto
  • Features
  • Leadership
  • Health
  • Commentary
  • Success
  • Retail
  • Mpw
  • Tech
  • Lifestyle
  • CEO Initiative
  • Asia
  • Politics
  • Conferences
  • Europe
  • Newsletters
  • Personal Finance
  • Environment
  • Magazine
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
About Us
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
Fortune Secondary Logo
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Latest in Environment

exxon
LawDefamation
Exxon can sue California’s AG for defamation over recycling comments, judge rules
By Janie Hair and The Associated PressFebruary 26, 2026
2 days ago
Performers in Morph suits on a football field pre-match
EuropeLetter from London
‘I sell millions of Halloween costumes to Americans. Mr. President, here’s my takeaway from the wild tariffs ride’
By Kamal AhmedFebruary 26, 2026
2 days ago
snow
North AmericaThe Weather Channel
After the Snow Day, the Sick Day: One in 6 New York City teachers called out of work on Tuesday
By Jake Offenhartz, Mike Catalini and The Associated PressFebruary 24, 2026
4 days ago
boston
North AmericaMedia
32 inches of snow were enough for the Boston Globe to call off print for the first time in 153 years
By Audrey McAvoy and The Associated PressFebruary 24, 2026
4 days ago
Photo of fragments of plastic on fingers
HealthHealth
Scientists are pushing back on warnings that microplastics damage your health, saying people are just obese and calling some studies ‘a joke’
By Catherina GioinoFebruary 24, 2026
4 days ago
AIchief executive officer (CEO)
Sam Altman gets defensive about AI’s massive electricity usage: ‘It also takes a lot of energy to train a human’
By Marco Quiroz-GutierrezFebruary 24, 2026
5 days ago

Most Popular

placeholder alt text
Success
Japanese companies are paying older workers to sit by a window and do nothing—while Western CEOs demand super-AI productivity just to keep your job
By Orianna Rosa RoyleFebruary 27, 2026
1 day ago
placeholder alt text
Success
Walmart exec says U.S. workforces needs to take inspiration from China where ‘5 year-olds are learning DeepSeek’
By Preston ForeFebruary 27, 2026
1 day ago
placeholder alt text
Personal Finance
Current price of gold as of February 27, 2026
By Danny BakstFebruary 27, 2026
1 day ago
placeholder alt text
Law
China's government intervenes to show Michigan scientists were carrying worms, not biological materials
By Ed White and The Associated PressFebruary 26, 2026
2 days ago
placeholder alt text
Commentary
'The Pitt': a masterclass display of DEI in action 
By Robert RabenFebruary 26, 2026
2 days ago
placeholder alt text
Economy
Come 2030, the U.S. deficit will be worth 5.9% of GDP—more than spending on Social Security, and equal to major health programs
By Eleanor PringleFebruary 26, 2026
2 days ago

© 2026 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.