Back to today’s briefing

Story perspectives

7,500 Greenland Lakes Turn Brown, Threaten Ecosystems

1/24/2025

26 6

Summary

Lakes Release Carbon

A groundbreaking study from the University of Maine reveals that approximately 7,500 lakes in West Greenland have turned brown and started releasing carbon, a direct consequence of unprecedented heat and rainfall in fall 2022. This alarming transformation jeopardizes water quality and local ecosystems, sparking fears over health risks and disruptions to the carbon cycle.

Summary

Ecosystems Unraveling Carbon

A groundbreaking study in Nature Climate Change uncovers alarming changes in northern ecosystems due to rising temperatures. While plant life flourishes, it fails to capture carbon effectively. Instead, thawing tundra and heightened wildfire risks are unleashing carbon dioxide, jeopardizing the fragile carbon storage of the Arctic and boreal forests.

History

Historical Context

Recent studies reveal that 7,500 lakes in West Greenland have turned brown due to extreme heat and rainfall, releasing carbon and threatening ecosystems. This mirrors past climate shifts, such as the early 2000s, when Arctic warming accelerated ice melt, raising concerns over carbon release from thawing permafrost, highlighting the ongoing vulnerability of northern ecosystems to climate change.

1 of 3

Lakes Release Carbon

A groundbreaking study from the University of Maine reveals that approximately 7,500 lakes in West Greenland have turned brown and started releasing carbon, a direct consequence of unprecedented heat and rainfall in fall 2022. This alarming transformation jeopardizes water quality and local ecosystems, sparking fears over health risks and disruptions to the carbon cycle.

1 / 3