Nuclear War

Nuclear War ☆

Nuclear War

Advancing technology’s role in rising global tensions.

Over 90 million casualties could occur in just the first few hours of a global nuclear conflict.

Summary

In the midst of World War II, global superpowers sought to develop a weapon that could secure their victory. By 1945, the U.S. had developed and used 2 atomic bombs on Hiroshima and Nagasaki, killing around 200,000 people and showcasing the catastrophic potential of these weapons.

Years later, a series of political tensions between the U.S. and the Soviet Union known as the Cold War (1947–1991) caused nuclear development to peak at over 70,000 warheads, with both powers locked in mutually assured destruction (MAD), where a nuclear strike by one would ensure total retaliation and annihilation on both sides.

Today, a single nuclear bomb could be 50 times more powerful than the Hiroshima bomb, and intercontinental ballistic missiles can strike within minutes, increasing the risk of accidental or preemptive use. Studies found that even a limited regional conflict, like one between India and Pakistan, could lead to a “nuclear winter,” cooling the planet by 1.25°C and disrupting agriculture globally, likely causing famine.

Reports from SIPRI and the Bulletin of the Atomic Scientists, which has moved the Doomsday Clock to 90 seconds from midnight (the closest ever), stress that advanced missile systems and hypersonic technology escalate the risk. The immediate destruction from nuclear conflict, along with long-term climate and health effects, make nuclear war one of the most critical existential risks for humanity.

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