The Abeyance of the Indus Waters Treaty: A Quantitative Assessment of Hydrological, Agricultural, and Economic Impacts on Pakistan (2025–2035)
This paper quantitatively assesses the projected impacts of the Indus Waters Treaty's 2025 abeyance on Pakistan, forecasting a 28.8% decline in water availability by 2035 due to Indian hydroelectric projects, which would result in cumulative GDP losses of USD 50 billion and agricultural revenue declines exceeding USD 32 billion.
Original paper licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). This is an AI-generated explanation of the paper below. It is not written or endorsed by the authors. For technical accuracy, refer to the original paper. Read full disclaimer
Imagine two neighbors sharing a single, life-giving river that winds through both their backyards. For decades, they signed a strict "Water Sharing Pact" that said, "You get the water from the top three streams, and I get the bottom three." This pact was so important that it survived wars, arguments, and even the occasional slammed door. But in this story, the neighbor upstream suddenly decided to pause the pact. Now, they are building giant water wheels and storage tanks on the streams that flow into the downstream neighbor's fields. This is the world of transboundary water governance, where countries argue over who gets to use the rain and snow that falls on their shared rivers. The core idea here is hydrological modeling, which is basically using math to predict how much water will actually reach the fields if someone upstream decides to hold some back. Why does anyone care? Because water isn't just for drinking; it's the fuel for the food we eat and the money countries make. If the water stops flowing, the crops die, the prices of food skyrocket, and the whole economy can stumble.
Now, let's dive into a new study by Praveen Kumar Yadaw from Kalinga University, which acts like a high-tech crystal ball for the years 2025 to 2035. The paper asks a terrifying question: What happens if the "Water Sharing Pact" (known as the Indus Waters Treaty) is officially put on hold, and the upstream neighbor starts using their new dams to the absolute limit?
The author didn't just guess; they built a digital simulation, a kind of "water video game," to see what happens to Pakistan, the downstream neighbor. They set up five different storylines, ranging from "everything stays the same" to "the worst-case scenario where all new dams are built and the treaty is gone." In their most dramatic simulation, called "Full Abeyance," the results are stark. By 2035, Pakistan's water supply could shrink by 28.8%, dropping from 178.2 BCM (that's 178.2 billion cubic meters, or a massive ocean of water) down to just 127.0 BCM.
Think of it like a giant pizza. If the treaty holds, Pakistan gets a full slice. But if the treaty is paused and India builds all its new hydroelectric projects—like the Pakal Dul, Kiru, and the massive Bursar dam—Pakistan's slice gets cut down to a crumb. The study suggests that these new dams alone are responsible for 62% of the missing water. The Bursar Dam is the biggest culprit in this simulation, acting like a giant sponge that could soak up 1.85 BCM of water on its own.
The consequences of this "missing pizza" are not just about thirsty plants; they are about empty wallets and hungry people. The simulation predicts that if this water loss happens, Pakistan could lose a staggering USD 50 billion in its total economy (GDP) by 2035. The farming sector would take a massive hit, losing over USD 32 billion in revenue. Imagine the farmers in Punjab and Sindh, who grow wheat and cotton, suddenly finding their fields dry. The study suggests that wheat production could drop by 7.2 million tonnes, which is enough food to feed 35 million people for a year. Cotton, a major export, could see its harvest shrink by 13.8%, costing the country nearly USD 483 million every year.
The paper also warns that the damage won't happen slowly; it's like a dam breaking. The impact gets worse and worse as more dams come online, especially between 2025 and 2028. The study highlights that the Chenab River is the most critical spot, as it supplies a quarter of Pakistan's water and feeds the most important farming belts. If the upstream neighbor decides to hold back water during the dry season, the downstream neighbor's crops could wither before they even grow.
However, the author is careful to remind us that these are simulations, not crystal-clear prophecies. The numbers depend on the assumption that the upstream country will use every drop of water they are allowed to under their new, unconstrained rules. In the real world, things might be a bit different due to technical limits or environmental rules. But the message is clear: the study suggests that without the treaty's safety net, the combination of new dams and a changing climate could push the region toward a severe water crisis, with economic losses that could reach USD 68.5 billion in an extreme scenario.
The paper concludes that this isn't just a math problem; it's a race against time. The window to fix this is narrow, right now, before the new dams are fully finished. The author suggests that the only way to stop this "water drought" is to get the treaty back on the table, build more storage tanks on the downstream side, and teach farmers how to use less water. It's a call to action, warning that if the water stops flowing, the economy and the food on our plates will pay the price.
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