Pakistan’s climate déjà vu

What to do when floods echo louder each year

By Sharmeen Ali Bukhari
|
October 05, 2025


P

akistan’s landscape has been reshaped time and again by raging waters, turning vibrant communities into scenes of desperation. In recent years, these floods have transformed from seasonal inevitabilities into catastrophic déjà vu - each disaster a louder echo of the last.

Previous alarm

A broad timeline of floods in Pakistan from 1950 to 2022 illustrates how flooding has been a recurring and destructive hazard, though its intensity has varied across decades. The deadliest flood was recorded in 1950 with over 2,000 deaths. Other catastrophic events include the 2022 floods with more than 1,700 deaths. Though some years, particularly in the 1980s and mid-2010s, saw relatively fewer casualties, the overall pattern highlights cyclical yet unpredictable flood risk.

According to research papers, over 3,500 people were killed in the 2010-2011 and 2022 floods, which affected between 55 and 60 million people. Considered the largest calamity in Pakistan’s history at the time, the 2010 floods destroyed around two million hectares of crops, flooded vast areas of farmland, impacted 24 million people and caused an estimated $10 billion economic losses.

The resurgence of these severe disasters shows that despite technological progress and institutional development, the country’s vulnerability remains alarmingly high. It is driven by climate change, poor water management and growing populations in flood-prone areas.

The 2022 floods

Pakistan endured one of its worst natural calamities on record in 2022. From June to August, the country saw rainfall totals break through historical averages. Sindh recorded the highest economic loss at $11,376 million, followed by Balochistan with $2,516 million. The Punjab and Khyber Pakhtunkhwa faced losses of $566 million and $658 million, respectively. Cross-provincial losses amounted to $67 million. Special regions reported $49 million losses. Overall, the total reached $15,233 million.

The 2022 floods in Pakistan revealed how environmental shocks can escalate into humanitarian crises when combined with weak infrastructure, economic strain and limited resilience. They exposed a cycle of poverty, malnutrition and disease, showing how climate disasters deepen inequalities and highlight the urgent need for integrated disaster preparedness and sustainable development.

2025 floods

Fast forward to 2025, Pakistan found itself once again submerged under relentless monsoon rains, a serious reminder of nature’s fury and human shortcomings. Torrential rains and sudden flash floods swept across the country, claiming more than 900 lives, injuring over a thousand people and leaving thousands of families displaced as more than 8,000 homes were either damaged or completely destroyed. The scale of destruction grew steadily as the monsoon intensified, affecting region after region with devastating force.

The first major disaster unfolded on August 15 in Buner district of Khyber Pakhtunkhwa, where more than 150 millimetres of rainfall in an hour occurred. The downpour triggered violent flash floods that swept through settlements, claiming lives and destroying infrastructure. The severity of the situation forced the provincial government to declare a state of emergency in nine districts. On August 19, Karachi and its surrounding areas were hit by relentless rains that overwhelmed the city’s strained drainage system. Urban flooding brought life to a standstill, damaging property, cutting off mobility and compelling local authorities to announce a rain emergency.

In the northern highlands, the crisis deepened on August 22 when Gilgit-Baltistan’s Ghizer district suffered a glacier lake outburst flood (GLOF). The sudden release of glacial waters caused intense flooding, washing away roads and isolating communities already vulnerable to climate-related hazards. In the meantime, beginning on August 25, the Punjab was hit by yet another calamity. A combination of continuous heavy rainfall and water releases from dams in India pushed the province into record-level flooding. By early September, three major rivers of the Punjab (the Sutlej, Chenab, and Ravi) had risen to unprecedented heights. On September 6, the flood submerged nearly 3,900 villages, destroyed vast areas of farmland and marked the worst inundation the Punjab had witnessed in decades.

Pakistan’s floods are no longer isolated disasters. They are recurring echoes shaped by climate change, poor governance and environmental degradation.

As floodwaters surged southward, Sindh was placed on high alert. On September 7, authorities evacuated more than 100,000 residents from katcha and other low-lying areas along the Indus River. The mass displacement reflected the magnitude of the threat. The province braced for advancing floodwaters from the Punjab. Entire communities were uprooted and livelihoods were disrupted.

Why the echo grows louder

The crisis cycle diagram illustrates how floods in Pakistan are not merely random acts of nature, but rather the result of a loop where global climate change intersects with local governance failures. Although Pakistan contributes less than 1 percent of global greenhouse gas emissions, it ranks among the most climate-vulnerable countries in the world. The 2022 floods demonstrated this fragility, displacing over 33 million people. This paradox highlights how nations with minimal historical responsibility for emissions still pay a disproportionately high price for climate impacts.

Global warming triggers two immediate consequences in Pakistan’s context. First, glacial melt across the Hindu Kush and Karakoram has spawned more than 3,044 glacial lakes in Gilgit-Baltistan and Khyber Pakhtunkhwa, 33 of which are classified as hazardous due to their potential for sudden GLOFs. Second, over the past decade, these GLOFs they have intensified in both number and severity, putting more than 7 million people in the GB and the KP at risk. In addition to glacial melting, intense monsoon rains have become a key driver of GLOFs, as unpredictable downpours rapidly fill glacial lakes. In 2022, heavy summer rains played a major role in the flooding of Swat Valley.

Poor urban planning and deforestation have created a perfect storm of vulnerability that transforms manageable weather events into catastrophic disasters. Across cities like Karachi, illegal construction on riverbeds and blocked drains have worsened the impacts of heavy rainfall. Over 829 illegal encroachments have been reported on rivers, streams and other natural waterways around the province, blocking water flow. Moreover, Illegal encroachments in flood-prone areas along the Ravi, enabled by weak enforcement, left housing schemes and settlements exposed. When the river overflowed, these areas suffered major flooding and losses. Poor enforcement of zoning laws and short-sighted development have transformed natural floodplains into densely populated settlements, thereby multiplying human and economic losses whenever floods strike.

Deforestation is a critical link in this destructive cycle. Pakistan has lost nearly 18 percent of its forest cover since 1992, leaving only around 5 percent intact. In Khyber Pakhtunkhwa, widespread illegal logging and encroachment have weakened natural barriers that once absorbed heavy rains and protected against landslides. In the absence of these protective forests, floodwaters move unchecked, amplifying their speed and destructive power.

This combination of environmental degradation and poor planning creates amplified destruction that far exceeds what the original climate impacts would have caused in a well-managed system. The destruction then feeds back into the cycle, as damaged infrastructure becomes even more vulnerable to future floods, degraded ecosystems lose their protective capacity and weakened governance systems struggle to implement effective responses.

Maneuvering through echo

Considering the crisis cycle, if adequate measures are not taken, the pattern of preventable tragedies will continue amplifying the echo of past mistakes.

The country’s limited water storage capacity amplifies its flood vulnerability. According to Muzammil Hussain, chairman of the Water and Power Development Authority, “Pakistan can store only 10 percent of its annual river flows. The average storage capacity worldwide stands at 40 perent.” This means that there is a need to create water storage mechanisms. The Diamir Bhasha Dam, once completed, will store an additional 8.1 million acre-feet of water. The dam will be instrumental in managing floodwaters and reducing the risk of future floods.

The Living Indus Initiative aims to restore 25 million hectares by 2030, building on the Ten Billion Tree Tsunami Programme that created over 165,000 jobs. Global watershed studies show that reforestation can reduce flood peaks and sediment flows by up to 40 percent.

Pakistan’s flood vulnerability stems from weak housing policies, unchecked encroachments and poor urban planning. The 2022 floods exposed the fragility of katcha houses, prompting initiatives like the Sindh People’s Housing for Flood Affected to build durable concrete homes. Low-cost community-driven models such as bamboo shelters are another affordable alternative. In the Punjab, 829 encroachments on rivers and drains caused Rs 75 billion losses. Unchecked encroachment on riverbeds and floodplains can only be reversed through firm political will to reclaim natural waterways and implement zoning laws. Lasting resilience, however, requires more than housing—reclaiming waterways, enforcing zoning laws and integrating blue-green infrastructure like permeable pavements and retention ponds, which have been shown in global pilots to manage over 80 percent of stormwater, are essential to creating sustainable, flood-resilient communities.

Pakistan’s floods are no longer isolated disasters but recurring echoes shaped by climate change, poor governance and environmental degradation. The history of floods highlights a dangerous déjà vu. The 2022 catastrophe exposed structural weaknesses and the 2025 floods showed that some lessons remain unlearnt. Pakistan must transform from reactive crisis management to proactive resilience-building, aligning governance, communities and ecosystems against future floods.


The writer is a recent graduate with First Class Honours in Business Administration from Royal Holloway, University of London)