Glacier Grafting: A Traditional Practice Combating Water Scarcity in Pakistan
In the face of rising temperatures and melting glaciers, Pakistan's residents in the high-altitude Himalayan region have turned to an ancient technique known as glacier grafting to combat water scarcity. This traditional practice, dating back centuries, involves 'planting' ice at strategic high-altitude locations to create new artificial glaciers.
Despite contributing less than one percent of global emissions, Pakistan is among the top 10 most climate-vulnerable nations, with an estimated 13,000 glaciers. As global warming intensifies, the melting of these glaciers is expected to have significant consequences.
Glacier grafting, locally referred to as glacier marriage, is a meticulous process. It involves sourcing 'male' and 'female' ice from different glaciers and transporting it to carefully selected high-altitude sites. This technique, which has been practiced for centuries, is rooted in both spiritual and ecological considerations.
The process begins with the collection of ice, with volunteers gathering around 200kg of 'male' ice from one valley and 'female' ice from another. Male ice is typically black, while female ice is lighter, and both types are essential for the grafting process. In ancient times, due to limited transportation, volunteers would travel on foot for days, carrying the ice in traditional wooden cages.
The grafting site is prepared with specific materials: coal, grass, salt, and water from seven streams. Before the procedure, the group recites Quranic verses, performs spiritual rituals, and prays for success. The ice blocks are carefully layered, mixed with the materials, and dripped with water from the streams to bind them together.
Over several months, the ice pieces fuse into a single mass, and if the site receives seasonal snowfall, it gradually develops into a glacier. After surviving for at least three years and enduring snow cycles, the artificially grafted glacier expands and becomes a reliable water source.
The success of glacier grafting lies in its long-term benefits. A successfully grafted glacier can start supplying water within two decades, ensuring water security. However, experts caution that the process is vulnerable to various threats, including natural failures, lack of snowfall, temperature drops, climate change, and conflict.
The practice of glacier grafting is deeply intertwined with local culture and spirituality. Ice pieces are kept in constant motion, never touching the ground, and volunteers are forbidden from speaking, using plastic, or relieving themselves near the site. Historically, glacier grafting has been accompanied by local music, with songs addressing the glacier as a living being, expressing prayers for its establishment and survival.
Despite its effectiveness, glacier grafting faces challenges. The mean temperature in Pakistan has risen by 1.3 degrees Celsius since the 1950s, twice the global average rate. As temperatures continue to rise, glacier grafting may not provide a comprehensive solution to Pakistan's melting glacier problem. However, it remains a testament to the power of Indigenous knowledge and collective care in shaping survival in mountainous regions.
Locals express concern that the practice of glacier grafting is rapidly disappearing, as younger generations are drawn to urban centers and alternative livelihoods. This shift has disrupted the intergenerational transfer of Indigenous knowledge, raising fears about the preservation of this ancient tradition.
