Signs of Climate Catastrophe Emerge in the Atlantic Ocean, Effects Visible as Far as Indonesia

Amid a global warming trend that is making almost all land and sea areas hotter, a strange and worrying phenomenon has emerged. A mysterious cold blob has formed at the bottom of the Atlantic Ocean, specifically southeast of Greenland. According to recent research published in the journal Geophysical Research Letters, this blob is not a random occurrence but a danger signal that the giant ocean current system regulating the world’s climate is weakening significantly. For decades, scientists have been puzzled by why a region in the Atlantic Ocean is actually getting colder while the rest of the Earth continues to warm. Initially, it was suspected that the cause was a shift in wind patterns or atmospheric influences removing heat from the sea surface. However, analysis of temperature data from 1995 to 2024 shows a different reality. There has been a temperature drop down to a depth of 1,000 metres below the surface, far deeper than surface winds could influence. ‘Heat loss at the surface only explains a small part of this phenomenon. The data proves the main cause is changes in ocean currents, not the air,’ said lead researcher Stefan Rahmstorf from the Potsdam Institute for Climate Impact Research in Germany. The phenomenon is a symptom of damage to the Atlantic Meridional Overturning Circulation (AMOC), a giant ocean circulation system that functions like the Earth’s ‘heat distribution heart’. AMOC works by flowing warm water from the tropics towards the North Atlantic. After cooling and becoming denser, the water sinks to the ocean floor and flows back south, regulating global temperatures and rainfall patterns. Without a stable AMOC, the global climate would be thrown into chaos. If this current continues to weaken and eventually collapses completely, the impacts would be felt worldwide. Europe could experience drastically colder winters, the US East Coast would face sharp sea level rises threatening coastal communities, and tropical regions would see total shifts in rainfall patterns, disrupting growing seasons and food supplies. The effects would also reach Indonesia. Although located thousands of kilometres away, the weakening of the AMOC has a cascading effect that extends to Southeast Asia. According to the latest climate models, a weakening AMOC would shift the Intertropical Convergence Zone (ITCZ), the main rain belt along the equator, further south. As a result, Indonesia is predicted to experience drier and longer dry seasons. Furthermore, erratic rainfall patterns would increase the risk of crop failure and drought in key agricultural areas. Changes in ocean circulation also affect the Indonesian Throughflow (ITF), which regulates temperature distribution and nutrients for local marine ecosystems. ‘Climate change in the Atlantic is not a local problem. It triggers atmospheric waves that propagate to the Indian and Pacific Oceans, altering wind and rainfall patterns in our region,’ explained Rahmstorf. Scientists stress that the AMOC has not yet collapsed completely, but data shows a consistent weakening trend since the mid-20th century. If greenhouse gas emissions remain high, models predict the risk of collapse could increase sharply from 2055 until the end of this century. ‘This is not the end of the story, but a stark warning. The cold blob is a sign that our climate regulation system is under severe stress,’ said David Thornalley from University College London. ‘There is still a chance to reduce emissions and slow this damage, but we must act now.’