Rising heat in Karachi deepens divide between rich and poor

As Karachi endures more frequent and intense heatwaves, a former government minister and a researcher document how climate extremes are reshaping daily life and exposing deep social inequalities.

Aman Azhar reports for Inside Climate News.


In short:

  • Karachi’s record-breaking heatwave in June 2024 killed hundreds, mostly poor and elderly residents, while power outages and vanishing green space worsened exposure and suffering.
  • Stanford anthropologist Ali Zaidi’s fieldwork in Karachi’s working-class neighborhoods finds that heat not only affects health but alters daily patterns of work, rest, and social interaction, especially where infrastructure is weakest.
  • Former climate minister Sherry Rehman says Pakistan’s climate response has been fragmented and under-resourced, and a lack of reliable mortality data hides the full toll of heat disasters.

Key quote:

“It’s not the drastic events, it’s the silent things, the way things are changing on an everyday basis.”

— Ali Zaidi, Ph.D. candidate in anthropology at Stanford

Why this matters:

Extreme heat is the deadliest form of climate-related disaster, especially in cities where rapid development outpaces infrastructure. Karachi — Pakistan’s largest city — offers a stark example of how heat exacerbates existing inequalities: Air conditioning, tree cover and water access separate those who suffer most from those who can insulate themselves. People with chronic illness, inadequate housing or limited access to care are hit hardest. As nighttime temperatures rise and last longer, the body has less chance to recover, particularly among laborers and the elderly. When death registries undercount heat-related mortality and data gaps persist, it becomes easier for governments to delay action. Cities like Karachi are becoming test cases for how societies will live — and die — on a hotter planet.

Read more: Most climate disaster deaths in Pakistan go uncounted as heat and floods strain health care

A row of solar panels with the city of Shanghai in the background

China to see solar capacity outstrip coal capacity this year

The China Electricity Council says that, by the end of 2026, wind and solar will account for nearly half of China’s power capacity.

A hand placing a seed in a pot inside a greenhouse

The US farmers saving Palestinian seeds

More than 40 growers nationwide are working to preserve heirloom seeds, along with the history, tradition, and identity they contain.
Petri dishes with meat in them

Why the future of meat production is in vats, not farms

A new book argues that "cultivated” and other alternative meats will increasingly challenge traditional ways of raising livestock.
A reservoir viewed from above with dry shores

Western U.S. cities open wallets in quest for water

Supply declines, drought risk, and population growth are pushing cities to seek new water sources.

Yellow plastic bag with fruit in it

Biodegradable plastic isn't a climate solution on its own

A new global life-cycle analysis finds that if not properly disposed of, biodegradable plastics could increase methane emissions and plastic accumulation.
An anesthesiologist placing a cup on a patient's mouth

Cutting the climate impact of anesthetic gases across Loma Linda University Health

Hospital systems are reducing greenhouse gas emissions, improving operational efficiency, and strengthening our commitment to environmental stewardship.

Doctors discussing chest xrays

How letting radiologists work remotely can help save the planet

Teleradiology can drastically reduce greenhouse gas emissions, at roughly 63% when compared to if all impacted individuals needed to travel into work every day, one academic institution estimates.  
From our Newsroom
Multiple Houston-area oil and gas facilities that have violated pollution laws are seeking permit renewals

Multiple Houston-area oil and gas facilities that have violated pollution laws are seeking permit renewals

One facility has emitted cancer-causing chemicals into waterways at levels up to 520% higher than legal limits.

Regulators are underestimating health impacts from air pollution: Study

Regulators are underestimating health impacts from air pollution: Study

"The reality is, we are not exposed to one chemical at a time.”

Pennsylvania governor Josh Shapiro speaks with the state flag and American flag behind him.

Two years into his term, has Gov. Shapiro kept his promises to regulate Pennsylvania’s fracking industry?

A new report assesses the administration’s progress and makes new recommendations

silhouette of people holding hands by a lake at sunset

An open letter from EPA staff to the American public

“We cannot stand by and allow this to happen. We need to hold this administration accountable.”

wildfire retardants being sprayed by plane

New evidence links heavy metal pollution with wildfire retardants

“The chemical black box” that blankets wildfire-impacted areas is increasingly under scrutiny.

Stay informed: sign up for The Daily Climate newsletter
Top news on climate impacts, solutions, politics, drivers. Delivered to your inbox week days.