A new study predicts that up to 91% of South America’s cloud forests could disappear by 2070 under a high-emissions scenario. The research, led by Patrícia Vieira Pompeu, highlights the critical role these ecosystems play in sustaining biodiversity and water supplies for 16 million people. The findings are based on machine learning models that project cloud forest distribution under different climate scenarios, emphasizing their vulnerability to both climate change and land-use changes.

Commenters overwhelmingly agree that cloud forests are at risk, with many citing the potential loss of 91% of these ecosystems by mid-century. They note that only one-third of cloud forests are in protected areas, which may not be enough to shield them from climate impacts. Some argue that reducing CO2 emissions is the most fundamental solution, while others stress the need for stronger conservation efforts and financial incentives. Walter Jetz, a biodiversity scientist, underscores the unique vulnerability of cloud forests due to their narrow climate requirements.

The community consensus is clear: climate change poses an existential threat to South American cloud forests, with severe consequences for biodiversity and water security. While there is no direct controversy, the discussion implicitly reflects a divide between the urgency of emission reductions and the feasibility of conservation strategies. The weight of opinion points to the need for immediate action on both fronts to protect these vital ecosystems.