massive iceberg Archives - Disasters News

Jan262025 by Editor DeskNo Comments

Megaberg A23a Threatens Wildlife Haven South Georgia

A23a, the world’s largest iceberg, weighing over a trillion tons, is on a collision course with South Georgia, a remote British island in Antarctica. According to a BBC report, this "megaberg," spanning 3,900 square kilometers about three times the size of New York City is currently just 280 kilometers from the island and is expected to make contact within two to four weeks, depending on ocean currents. A Wildlife Haven at Risk South Georgia, often called a wildlife paradise, is home to large populations of king penguins, elephant seals, and fur seals. Experts warn that if A23a grounds near the island, fragmented icebergs could block access to vital feeding grounds for years. Marine ecologist Mark Belchier, who advises South Georgia's government, explained the region’s vulnerabili...

World Largest One Trillion Iceberg Melt Down After Decades of Stillness

Breaking News, Climate Actions, Disasters, Environment

The world’s largest and oldest iceberg, A23a, has broken free after decades of being grounded on the seabed near Antarctica. This colossal "mega-berg," weighing over a trillion tonnes and spanning an area twice the size of Greater London, is now drifting into the Southern Ocean. A23a was calved from Antarctica’s Filchner Ice Shelf in 1986, marking the beginning of its extraordinary journey. For over 30 years, it remained grounded on the seabed of the Weddell Sea. In 2020, it began to shift northward, but its progress was slowed by a Taylor Column, an oceanographic phenomenon that kept it spinning in one spot for months. Dr. Andrew Meijers, an oceanographer at the British Antarctic Survey, remarked, “It’s exciting to see A23a on the move again after periods of being stuck. We are curi...

Antarctica’s Brunt Ice Shelf Calves Massive Iceberg A-83, Signals Ongoing Environmental Shift

Breaking News, Climate Actions, Environment

On May 20th, 2024, Antarctica witnessed yet another significant iceberg calving event as a massive iceberg measuring 380 square kilometers (approximately 147 square miles) broke off from the Brunt Ice Shelf. This event, designated A-83 by the U.S. National Ice Center, marks the third major iceberg calving in the region within the past four years. The separation of iceberg A-83 was captured by two Earth Observation satellites: the European Space Agency's Copernicus Sentinel-1 and NASA's Landsat 8 satellites. These satellites provided radar imaging and thermal data, respectively, allowing scientists to monitor the effects of climate change on remote regions like Antarctica. Routine monitoring of ice shelves by satellites enables scientists to track changes in ice dynamics and structura...