Pakistan could have averted its climate catastrophe

As the largest irrigation system in the world, the Indus valley is another monument to massive investment whose roots date back more than 4,000 years. Like Pakistan whose backbone it forms, however, the Indus and its tributaries have been starved of the investment they need to effectively manage the risks of natural disaster.

Some of the most important lines of defence against floods are colonial-era projects such as the vast Sukkur Barrage — a system of dams and canals that divert the waters of the Indus’ to irrigate the arid southern Sindh Province. Many are in a poor state of repair, thanks to years of underinvestment in maintenance; corruption; and disputes between Pakistan’s four provinces about the allocation of water and funds.

The Tarbela and Mangla reservoirs on either side of Islamabad have become so choked with silt sweeping down from the Himalayas that they’re losing their ability to swallow up floodwaters and prevent inundation further downstream. Just 57 percent of Tarbela’s storage capacity is now available, and increased silting may clog it altogether, a government committee was told earlier this month.

The underinvestment that has led to this state of affairs is chronic. Among the world’s top 20 economies by population, only Egypt has a lower rate of gross capital formation than Pakistan — a sign of a country that’s unable to build the infrastructure it needs to support a growing population. With the costs of climate impacts rising, more and more money is going to be spent not on the long-term investments needed to protect the country against future natural disasters, but simply on the clean-up and compensating for the loss of productivity following catastrophes.

A changing climate will make the problems Pakistan is experiencing now even worse. Warmer air is able to hold more moisture, making extreme monsoon rainfall a more frequent occurrence. It also causes mountain ice to melt faster — a significant issue in Pakistan, home to more glaciers than any country outside the polar regions. Flash flooding from the overflow of glacial lakes can be devastating, particularly in mountainous regions of the country close to the Afghan, Indian, and Chinese borders.

The global pool of financing available to deal with Climate Change isn’t up to the challenge, and more than three-quarters of the total is still going to mitigation — investment in transitional technologies to prevent future emissions. That spending is important, but unlikely to be as useful to a nation like Pakistan, whose emissions are minimal. Its far greater need is for funds to adapt to the changes that are already happening.

Sufficient expenditure could solve many of these problems at a stroke — but Pakistan is struggling to run up a descending escalator, with energy import dependence, weak agricultural productivity, and lack of external investment contributing to a vicious cycle of underdevelopment. Even when cash has been made available for nation-building infrastructure (the country was one of the biggest recipients of Chinese funding for Belt and Road projects, much of it spent on hydropower and water management), Pakistan’s exposure to economic shocks has left it ill-placed to pay its way.
Rich countries are reluctant enough to invest in Pakistan’s energy transition, which at least offers the prospect of returns, however meagre and uncertain. They’re still less likely to donate the grant funds necessary to insulate one of the world’s poorest countries against the impact of rising global temperatures. Cash can’t prevent a flood, but it can prevent natural disasters capsizing an economy. Pakistan badly needs that support.