Indo-Pak nuke war could kill 100m | The Daily Star
12:00 AM, October 04, 2019 / LAST MODIFIED: 12:00 AM, October 04, 2019

Indo-Pak nuke war could kill 100m

Say researchers as tensions between S Asian rivals mount

♦ India, Pakistan currently each have about 150 nuke warheads 

♦ The number expected to climb to more than 200 by 2025

The year is 2025 and militants have attacked India’s parliament, killing most of its leaders. New Delhi retaliates by sending tanks into the part of Kashmir controlled by Pakistan.

Fearing it will be overrun, Islamabad hits the invading forces with its battlefield nuclear weapons, triggering the deadliest conflict in history -- and catastrophic global cooling, with temperatures not seen since the last Ice Age.

This scenario was modelled by researchers in a new paper published on Wednesday, which envisaged more than 100 million immediate deaths, followed by global mass starvation after megatons of thick black soot block out sunlight for up to a decade.

It comes at a time of renewed tensions between the two South Asian rivals, which have fought several wars over the Muslim-majority territory of Kashmir and are rapidly building up their atomic arsenals.

They currently each have about 150 nuclear warheads at their disposal, with the number expected to climb to more than 200 by 2025.

“Unfortunately it’s timely because India and Pakistan remain in conflict over Kashmir, and every month or so you can read about people dying along the border,” Alan Robock, a professor in environmental sciences at Rutgers University, who co-authored the paper in Science Advances, told AFP.

India has a “no first strike” policy, but reserves the right to mount a nuclear response to any hit by weapons of mass destruction.

Pakistan has declared it would only use nuclear weapons if it could not stop an invasion by conventional means or were attacked first with nuclear weapons.

MASS STARVATION

Based on their current populations and the urban centres that would be likely targeted, the researchers estimated up to 125 million could be killed if both countries expended the bulk of their highest yield weapons.

Around 75-80 million people were killed in World War II.

This most extreme scenario would involve the use of 100 kiloton weapons, more than six times as powerful as the bombs dropped on Hiroshima.

A single airburst from such a bomb could kill two million people and injure 1.5 million -- but most of the deaths would occur from the raging firestorms that followed the blast.

As a percentage of its urban population, though, Pakistan’s losses would be about twice those of India.

The research found that the firestorms could release 16 million to 36 million tons of soot (black carbon) into the upper atmosphere, spreading around the world within weeks.

The soot in turn would absorb solar radiation, heating the air up and boosting the smoke’s rise.

Worldwide food shortages would follow, with the effects persisting up to 10 years.

“I hope our work will make people realize you can’t use nuclear weapons, they are weapons of mass genocide,” Robock told AFP, adding the paper lent more evidence to support the 2017 UN Treaty on the Prohibition of Nuclear Weapons. 

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