A glacier baby is born: Mating glaciers to replace water lost to climate change

In response to climate change and diminishing water supplies, villagers in Pakistan’s highlands are reviving an ancient ritual known as “mating glaciers” in hopes of creating new water sources.

The Ritual: Residents believe that combining chunks of “male” and “female” glaciers will spark the creation of a newborn glacier that will grow large enough to serve as a water source.
* The “male” glaciers are identified by their black or brown colour due to rock debris, while “female” glaciers are characterised by their white colour.
* United Nations Development Program (UNDP) supports this initiative by providing small grants for glacier mating and the help of an engineer who’s an expert on Balti traditions.

The Problem: Though located in Asia’s high mountains, often called the “Third Pole” because of the sizeable ice volume, Baltistan is facing severe water scarcity.
* Thousands of glaciers in these mountains have been melting more rapidly over the past two decades, causing disastrous floods while reducing the amount of spring snowmelt that supplies many waterways.
* An expert from ICIMOD stated that even if global warming is kept between 2.7 and 3.6 degrees Fahrenheit by 2100, the high mountains of Asia could lose 30%-50% of their ice mass by the end of the century.

Alternatives: Apart from glacier mating, the inhabitants of Baltistan practice several unconventional strategies in an effort to tackle their water problems.
* Some are constructing “ice stupas” – structures that freeze sprayed water mist to form a tower that gradually melts in spring, providing water for irrigation.
* Others are learning to harvest avalanches or flouting laws to divert more stream water into their canals.

Expert Take: Scientists like mountain hydrologist Jakob Steiner concur that the science behind glacier mating is sound.
* Steiner explains that residents retrieve melting ice from lower down the mountain and put it further up where it can’t melt, ultimately leading to the growth of ice.
* However, he adds that technologies like ice stupas, glacier mating, and avalanche harvesting will not solve the wider problem that climate change presents. Nevertheless, they could alleviate specific challenges like providing a steady supply of irrigation water.

View original article on NPR

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