Himalayan Glacier Melt Could Put India’s Monsoon, Rivers and Agriculture at Risk, Warns Climate Researcher

Rapid glacier melt in the Himalayas, driven by global warming and human activity, could threaten India’s monsoon cycle, major rivers, drinking water supplies and agriculture, climate researcher Dr K.S. Hosalikar has warned.

The warning comes amid growing concern over the devastating floods in Nepal on August 26, after a giant glacier collapse triggered flooding in the Lhende, a tributary of the Bhote Koshi River.

Dr Hosalikar, former Deputy Director General of the India Meteorological Department and an internationally recognised climate researcher, told Gujarat Samachar in an exclusive telephonic interview that the Nepal disaster and the rapid melting of Himalayan glaciers are closely linked to rising global temperatures and human activity.

Himalayas and India’s Monsoon

The Himalayas are often described as the Earth's "third pole" because of their enormous reserves of snow and ice. Their snow-covered ranges play a major role in regulating water resources and influencing the climate and monsoon systems of the Indian subcontinent.

According to Dr Hosalikar, a continued and rapid loss of Himalayan glaciers could have severe consequences for India's water cycle.

The country's major river systems, including the Ganga, Yamuna, Brahmaputra and Godavari, could face significant pressure as the Himalayan cryosphere changes. Millions of people across India and neighbouring regions depend on these water systems for drinking water, irrigation and other needs.

Nepal Floods Raise Fresh Concerns

The catastrophic flooding in Nepal on Wednesday has brought renewed attention to the vulnerability of Himalayan regions to extreme weather and glacier-related events.

A large glacier collapsed and sent huge quantities of water and debris into the Lhende, a tributary of the Bhote Koshi River. The resulting floodwaters and mud caused extensive destruction in the area.

The incident has raised questions over how rising temperatures are altering the stability of glaciers and other high-altitude environments.

Threat to Agriculture and Water Security

The consequences of Himalayan glacier loss would extend well beyond mountain regions.

Changes in the availability and timing of river water could affect irrigation and agriculture across large parts of India. Communities dependent on rivers and lakes could also face increasing pressure on drinking-water supplies.

A weakening of the natural snow and ice reserves in the Himalayas could therefore create serious challenges for both water security and food production.

The Himalayas are not only a source of freshwater but also play an important role in maintaining environmental and climatic balance across the region.

Global Warming Behind Rapid Changes

Dr Hosalikar linked the increasing frequency and severity of glacier-related risks to global warming and human activities.

As temperatures rise, glaciers are losing ice at an accelerated rate in several parts of the Himalayan region. Sudden glacier collapse and glacial lake outburst events can release enormous volumes of water, creating destructive floods downstream.

The Nepal disaster has once again highlighted the risks faced by communities living in and around the Himalayan river basins.

The warning also underlines the need for closer monitoring of glaciers, stronger early-warning systems and greater preparedness in vulnerable Himalayan regions.