Five countries are considered to be nuclear weapons states (NWS), which are the US, Russia, France, the UK and China. But Israel, India, Pakistan and North Korea also building a considerable nuclear arsenal.

If World War 3 were to break out between two or more of these countries, it could spell the end for humanity.

An all-out nuclear war between powerhouses such as the US and Russia could lead to the end of civilisation.

The nuclear blast could would cause debris to shoot up into the atmosphere, which would block out the Sun’s light.

This could then lead to the collapse of the food chain which would make it difficult to survive, with only 60 days worth of food currently in storage.

People inside the blast zone would be completely obliterated, but all life on Earth would suffer as a result, according to climatologist Alan Robock from Rutgers University.

He told Fox News: “A nuclear bomb is like bringing a piece of the sun to the surface of the earth for a fraction of a second, and everything within a certain distance would just flash into fire.

“In Hiroshima, there was a bomb that was 15 kilotons of explosive power, and everything within several square miles just burned and produced smoke.

“If the United States and Russia had a nuclear war today, there could be so much smoke that it would produce a nuclear winter.

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“Once the stores ran out of food and the food that was stored disappeared, it’d be very hard to get food.”

Last April, a report from the House of Lords’ International Relations Committee said “the risk of nuclear weapons being used is greater now than it has been since the Cold War.”

The report cited “disintegrating relationships between nuclear possessor states, new capabilities and technologies” as the reason behind the escalated tensions.



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