In the summer of 2022, Pakistan faced one of the worst climate disasters in its history. Months of extreme monsoon rain, on top of a spring heatwave that sped up glacier melt in the north, left huge parts of the country under water. Sindh and Balochistan were hit hardest.
The numbers
According to the Post-Disaster Needs Assessment led by the Government of Pakistan with the World Bank, the UN and other partners:
- 33 million people were affected.
- More than 1,730 people lost their lives.
- Around 8 million people were displaced.
- Damage and economic losses exceeded $30 billion, about $14.9 billion in damage and $15.2 billion in losses.
- Sindh suffered roughly 70% of the total damage and losses.
- An estimated 8 to 9 million more people could be pushed into poverty.
- Rebuilding in a resilient way needs at least $16.3 billion.
Housing, agriculture and livestock, and roads and bridges were the hardest-hit sectors. Around half of the crops in affected areas were destroyed.
Was it climate change?
Scientists studying the floods found that climate change likely made the extreme rainfall more intense. A warmer atmosphere holds more moisture, so when monsoon rain falls, more of it falls at once. The 2022 heatwave, which pushed temperatures past 50°C in places like Jacobabad, also accelerated glacier melt in the north, adding water to rivers already under pressure.
The injustice is stark. Pakistan produces less than 1% of global greenhouse gas emissions, yet it ranks among the countries most affected by extreme weather.
Why the damage was so severe
Rain alone doesn’t explain the scale of the disaster. Other factors made it worse:
- Bare land. Pakistan has less than 6% forest cover. Without trees and roots, rain runs off quickly instead of soaking in.
- Building in flood paths. Homes, roads and farms sit on natural drainage routes and riverbeds.
- Blocked drainage. Clogged channels and embankments trapped water for weeks.
- Poverty. Mud and kutcha houses collapsed first, and families had few savings to recover.
How trees reduce flood damage
Trees can’t stop a monsoon. But healthy tree cover changes how land responds to heavy rain:
- Roots hold soil on hillsides and riverbanks, reducing landslides and bank collapse.
- Forest soil soaks up water like a sponge, slowing how fast rain reaches rivers.
- Tree belts along rivers and canals slow floodwater and trap silt.
- Trees recharge groundwater, storing some of the monsoon for the dry months.
Planting is one part of a bigger answer that also needs better drainage, flood-safe housing and early warning systems. But it is a part everyone can join.
What you can do
- Sponsor native saplings for flood-affected districts and riverbanks.
- Join a monsoon plantation drive near you.
- Read about when and how to plant so your trees survive.
Sources: World Bank / Government of Pakistan Post-Disaster Needs Assessment (October 2022); World Weather Attribution.