India, April 21 -- Nobel laureate David Gross has warned that humanity may not survive another 50 years due to the growing threat of global nuclear war.

He cautioned that if current trends of conflict and geopolitical tensions continue, the world could face an existential catastrophe within the next 35 years.

Explaining his estimate, Gross said that even after the Cold War-when strategic arms control treaties were in place-there were calculations suggesting a 1% annual probability of nuclear war.

"That's roughly a 1-in-50 chance annually. At that rate, the expected timeframe before a catastrophic event is about 35 years," he noted, while acknowledging that the estimate is not precise.

Gross also warned that the world is entering what ...