They also said in case of a full-scale war between Russia and the US food production would fall by 90% within three to four years. The study suggested that even a battle between nuclear superpower neighbours India and Pakistan will see crop yields fall by an estimated 7% within five years. They also said that a small-scale nuclear conflict will severely impact global food production. They used a climate forecasting tool made with the help of the National Centre for Atmospheric Research with which they mapped the estimated productivity of major crops on a country-by-country basis. The scientists arrived at the estimates after calculating the amount of soot that could enter the atmosphere due to explosions and firestorms ignited following the detonation of the nuclear weapons. The study was published in Nature Food journal. It said that a full-scale nuclear war between the US and Russia would wipe out more than half of the global population. Rutgers University researchers mapped out six possible nuclear conflict scenarios and the effects of it.

The deaths would be caused by sunlight-blocking soot in the atmosphere and will exceed the casualties caused by the powerful blasts. A study by scientists at Rutgers University showed that five million people would die if a modern nuclear war broke out between the nuclear superpowers.

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