East Africa's iconic snow peaks will soon disappear for good. What will be lost when they melt?

East Africa’s iconic snow peaks, Mount Kenya, Mount Kilimanjaro, and the Rwenzori Mountains, are set to vanish entirely within the next few years, according to the 2025 State of the Climate in Africa report. The report highlights that glaciers on these peaks have declined dramatically, with Mount Kenya’s ice cover shrinking by 96% over the last 115 years. Scientists estimate that the glaciers will no longer exist in three to five years, marking a profound shift in the region’s landscape and climate dynamics. The glaciers on these peaks have undergone a steady retreat, with recent data showing a loss of 40% to 60% of their total area in just one decade. This rapid disappearance contrasts sharply with historical fluctuations, which were influenced by variations in regional climate patterns such as wetter or drier periods. While glaciers on these mountains may have existed for thousands of years, the current rate of loss is far beyond what could be explained by natural cycles alone. Researchers attribute this accelerated melting primarily to declining snowfall, which has weakened the glaciers' ability to sustain themselves. Glaciers are composed of compacted snow that has accumulated over many years. However, unlike larger glaciers elsewhere, East African ones are relatively small and do not function as major water sources. Their primary role is not to feed rivers or provide consistent water supply, as previously believed. Instead, much of the ice disappears through sublimation, a process where ice turns directly into vapor without passing through liquid form. This is especially common in the arid high-altitude environments of East Africa, where the air is dry and temperatures fluctuate widely. The volume of water stored in these glaciers is minimal compared to other parts of the world. For example, Mount Kenya’s glaciers covered approximately 69,000 square meters in 2022 and held around half a million cubic meters of ice. Even if all that ice were to melt at once, the resulting volume would be equivalent to a single day’s rainfall on the mountain. Therefore, while the glaciers contribute to local ecosystems, they play a negligible role in the broader hydrological cycle of the region. The true water towers of East Africa are its forests, which serve as critical reservoirs for the surrounding communities. From a scientific perspective, however, the glaciers hold immense value. They act as natural recorders of climate change, preserving evidence of past weather patterns in layers of ice. As researchers explain, glaciers function like “machines that translate weather into climate,” allowing scientists to reconstruct long-term climate trends based on the composition and structure of the ice. These glaciers, located in the mid-tropical troposphere, offer unique insights into atmospheric conditions at altitudes typically difficult to measure directly. This makes them invaluable for understanding global climate patterns and predicting future changes. The decline of East African glaciers is linked to broader climatic shifts, particularly changes in sea surface temperatures in the Indian Ocean. Variations in oceanic heat distribution influence the movement of moist air masses, affecting precipitation levels on the mountains. Over the past century, these patterns have shifted, leading to reduced snowfall and accelerating glacier retreat. Understanding these connections is crucial for developing strategies to mitigate the impacts of climate change on both the environment and human populations reliant on the region’s natural resources. As the glaciers continue to shrink, the implications extend beyond environmental concerns. Local communities that depend on the land for agriculture, tourism, and cultural heritage face increasing challenges. The loss of these iconic landmarks also represents a symbolic erosion of identity and history. Scientists warn that without urgent action to address the underlying causes of climate change, the final days of East Africa’s glaciers may come sooner than anticipated.