Climate Change and Pakistan: How Rising Temperatures Are Affecting Agriculture and Water

Climate Inequality: Pakistan's Paradox

Pakistan is one of the most climate-vulnerable nations on Earth, yet it contributes less than 1% of global greenhouse gas emissions. This stark inequality was laid bare in 2022, when catastrophic floods inundated one-third of the country, displaced 33 million people, and caused over $30 billion in damage. The 2022 floods were not a one-off event — they were a preview of the future that climate change is imposing on Pakistan.

In 2026, the effects of climate change are no longer abstract projections. They are measurable, observable realities that are reshaping Pakistan's agricultural landscape, straining its water resources, and threatening its food security. Understanding these impacts is essential for policymakers, farmers, businesses, and citizens alike.

The Impact on Agriculture

Agriculture accounts for approximately 24% of Pakistan's GDP and employs over 40% of its workforce. It is also the sector most directly exposed to climate change.

Rising temperatures. Pakistan's average temperature has increased by approximately 0.6°C over the past five decades — roughly double the global average rate. In 2026, summer temperatures in Sindh and Balochistan have repeatedly exceeded 50°C, setting new records. These extreme temperatures reduce wheat yields by up to 10% per degree Celsius of warming, according to research from the Pakistan Agricultural Research Council (PARC).

Shifting monsoon patterns. The monsoon, which provides 60-70% of Pakistan's annual rainfall, is becoming increasingly erratic. Some areas receive excessive rainfall leading to flooding, while others experience prolonged dry spells. In 2026, the monsoon arrived two weeks late in Punjab and was 25% below normal in parts of Sindh — threatening kharif (summer) crop production.

Pest and disease proliferation. Warmer temperatures and changing humidity patterns are expanding the range and season of agricultural pests. The pink bollworm, which devastates cotton crops, has moved northward into areas that were previously too cool for it to survive. Similarly, fungal diseases like wheat rust are appearing earlier in the growing season.

The Water Crisis

Pakistan is already classified as a water-stressed country, with per-capita water availability declining from 5,260 cubic meters in 1951 to approximately 908 cubic meters in 2026 — well below the 1,000 cubic meter threshold that defines water scarcity. Climate change is accelerating this decline.

Glacial melt. The Hindu Kush Himalayan range, which feeds Pakistan's major rivers, contains over 5,000 glaciers. Rising temperatures are causing these glaciers to melt at an unprecedented rate. While this initially increases river flow — contributing to flooding — the long-term consequence is a reduction in the glacial reservoir that sustains river flows during dry seasons.

Groundwater depletion. As surface water becomes less reliable, farmers increasingly turn to groundwater pumping. Pakistan's water table is dropping by 1-3 meters per year in many agricultural areas, particularly in Punjab. At current extraction rates, some areas could exhaust their groundwater within 20-30 years.

Saltwater intrusion. Rising sea levels are pushing saltwater into coastal aquifers in Sindh and Balochistan, contaminating drinking water and reducing the land available for agriculture in the Indus River Delta — one of the world's largest river deltas.

Food Security at Risk

The combination of reduced agricultural yields, water scarcity, and extreme weather events poses a serious threat to Pakistan's food security. The country already imports significant quantities of wheat, edible oil, and pulses. Climate change could increase these import requirements while simultaneously reducing export earnings from agriculture.

Smallholder farmers — who produce over 60% of Pakistan's food — are the most vulnerable. They typically lack access to climate-resilient seeds, irrigation infrastructure, crop insurance, and extension services. Without targeted support, many face the prospect of reduced harvests, increased debt, and potential displacement.

Adaptation and Resilience

Pakistan is not passive in the face of these challenges. Several adaptation measures are underway:

• Climate-resilient crop varieties. The PARC and international research centers are developing heat-tolerant wheat, flood-resistant rice, and drought-tolerant cotton varieties. These are being distributed to farmers through provincial agriculture departments.
• Water conservation. The government is investing in drip irrigation systems, rainwater harvesting infrastructure, and dam construction to improve water storage capacity. The Diamer-Bhasha Dam, when completed, will add 6.4 million acre-feet of water storage.
• Early warning systems. AI-powered flood and drought prediction systems are being deployed to give farmers and communities advance warning of extreme weather events.
• Afforestation. The Billion Tree Tsunami programme aims to restore forest cover, reduce soil erosion, and sequester carbon. By 2026, over 1.5 billion trees have been planted under the initiative.

What Individuals Can Do

While systemic change requires government action, individuals can contribute to climate resilience. Water conservation — fixing leaks, using efficient irrigation, and reducing wasteful consumption — makes a direct difference. Supporting local farmers who use sustainable practices strengthens the supply chain. Planting trees, even in urban settings, provides cooling, reduces air pollution, and sequesters carbon.

Climate change is the defining challenge of our generation. For Pakistan, the stakes could not be higher. The country's agricultural heritage, water resources, and food security are all at risk. But with informed action, strategic investment, and collective will, Pakistan can build the resilience it needs to weather the storm.