I will refrain from commenting on fast-moving current events in the India-Pakistan conflict. But here is a bit more on the water situation bubbling (sorry) under the surface (sorry again).

From an opinion piece by Brahma Chellany (“Professor Emeritus of Strategic Studies at the New Delhi-based Center for Policy Research and Fellow at the Robert Bosch Academy in Berlin, is the author of nine books, including Water: Asia’s New Battleground (Georgetown University Press, 2011), for which he won the 2012 Asia Society Bernard Schwartz Book Award.”)

“But this time, Modi has offered a calibrated and impactful response, pausing the Indus Waters Treaty (IWT), the world’s most-generous water-sharing pact, which grants downstream Pakistan access to over 80% of the Indus Basin waters. Brokered in 1960 by the World Bank, the IWT has long been hailed as a model of cross-border cooperation – one that China has not emulated. (Though its 1951 annexation of the water-rich Tibetan Plateau gave it control over the headwaters of Asia’s major rivers, China has refused to enter into a water-sharing treaty with any of its 18 downstream neighbors.)” …

Last year, when India formally sought to update the IWT – to account for unanticipated factors like climate change, groundwater depletion, and population growth – Pakistan refused to negotiate. [Note this is clearly an opinion and not an objective discussion, I am sharing as an example of how someone sympathizing with the Indian side might view the issue.]

Now a discussion of some science from indianexpress.com (which I have no past experience or inside information about, but it passes my surface credibility instincts):

Kulkarni said studies carried out by him and his colleagues have shown that the glaciers feeding the Ravi, Sutlej and Beas rivers, located at a lower altitude, are retreating at a faster rate in comparison to the glaciers in Pakistan, located at high altitudes in the Karakoram range. As a result, the amount of glacial meltwater is projected to be much higher than the previous decades till the middle of the century, which would be followed by a significant reduction in water availability, he said.

“The glaciers located on the eastern side are located at a relatively lower altitude, and they are losing mass at a higher rate, thus retreating faster. As you go higher, in the Karakoram mountain ranges, glaciers are not losing mass, they are relatively stable. In the scientific community, it is called the Karakoram anomaly,” said Kulkarni, a scientist at the Divecha Centre for Climate Change, Indian Institute of Science, Bengaluru…

Under the IWT, signed in September 1960, all waters of the Indus basin’s eastern rivers — Satluj, Beas and Ravi — are available to India for unrestricted use. Pakistan has rights over the western rivers — Indus, Jhelum and Chenab — and being upstream of its neighbour, it can only use waters of these rivers for non-consumptive use, such as to produce hydropower, navigation, flood protection and control, and fishing.

So the glaciers in the headwaters controlled by India have more flow currently because the glaciers there are melting faster, but there is less water stored there than in the headwaters controlled by Pakistan, and that would mean less flow in the future. Somewhat counter-intuitive. It also never occurred to me that China’s occupation of Tibet could be at least partly about controlling Himalayan headwaters. It’s hard to believe any of these countries and their politicians are making policy decisions based on long-term scientific forecasting and thinking. But maybe they are actually more rational and scientifically oriented than at least our current cohort of irrational and scientifically illiterate U.S. politicians.