The distinction between morning and night has effectively collapsed in parts of India where temperatures have reached 47 degrees Celsius. This is not a metaphor but a physiological reality: the human body can no longer cool itself, and even the air at midnight remains dangerously warm. Heatstroke becomes a constant risk, and sleep deprivation becomes chronic.
The UK has pledged £36 million through the British Climate Fund to support adaptation measures in the hardest-hit regions. The funding will go towards heat-resistant housing, public cooling centres, and early warning systems. This is a step in the right direction, but the pace of change remains glacial compared to the speed of the warming.
India is experiencing one of its most severe heatwaves on record. The city of Jacobabad in Pakistan, also similarly affected, recorded a wet-bulb temperature of 33.6C, a level considered the theoretical limit for human survivability. India's heatwave is not an anomaly; it is a sign of what is to come. Global average temperatures have already risen by 1.2C above pre-industrial levels, and the number of days exceeding 50C is increasing across South Asia.
From a thermodynamic perspective, the problem is simple: greenhouse gases trap more heat, and the only way to prevent this is to stop emitting them. But adaptation is also necessary because we cannot undo the warming already locked in. The British funding will help build more resilient infrastructure, but it cannot reverse the physics of a warming planet.
The phrase “mornings and nights no longer exist” captures the disorienting nature of extreme heat. It is not just uncomfortable; it is a fundamental disruption of the daily cycle. The body’s internal clock is tied to temperature drops that no longer occur. Productivity falls. Mental health suffers. Mortality rises. The World Health Organisation estimates that heatwaves already kill more than 166,000 people annually, a number that will grow.
This is a crisis of the biosphere. The energy transition is the only long-term solution. But in the short term, we must build heat shelters, plant shade trees, and change building materials. We must also acknowledge that some places will become uninhabitable. The British Climate Fund is a testament to that reality.
The message is clear: we are running out of time. The heat is here, and it is only getting worse. But we still have the means to act. The question is whether we have the will.
