Recent images from NASA satellites have revealed that more than half of the Earth’s oceans have turned green due to climate change, impacting marine ecosystems. The change in the ocean’s color has prompted scientists to investigate the underlying causes and the implications for aquatic life.
According to satellite data from the past 20 years, approximately 56% of the world’s oceans have experienced a shift from blue to green hues, especially noticeable in tropical regions near the equator. This greening of the oceans is a significant indicator of how climate change is affecting marine life.
The subtle change in color signifies an “ecosystem change” driven by climate change, as analyzed by researchers from the National Oceanography Centre in Southampton, UK. The exact nature and origin of these changes are not fully understood, but they are likely linked to phytoplankton, which form the basis of many marine food chains. These tiny organisms play a crucial role in producing oxygen, supporting marine life, and maintaining the Earth’s atmosphere.
The study highlights that climate change is already impacting the surface marine microbial ecosystem, with potential implications for marine biodiversity and ecological balance. Understanding these changes is crucial for assessing the overall health and resilience of marine ecosystems in the face of climate change.