Beijing could have 700 deliverable nuclear warheads by 2027 and could top 1,000 by 2030, an arsenal two-and-a-half times the size of what the Pentagon predicted only a year ago.
US, Russia, UK, France, China, Pakistan, India, Israel and North Korea together possessed an estimated 13,400 nuclear weapons at 2020 begining, Swedish peace research institute says.
The discussion by President Donald Trump's administration comes after some US officials reportedly claimed that Russia and China have been holding their own low-yield tests, which both the governments have denied.
The pandemic has altered our temporal imagination and accelerated political tensions.
President and CEO of the non-profit group Rachel Bronson said "It is the closest to Doomsday we have ever been in the history of the Doomsday Clock." The clock was created in 1947.
Worldwide food shortages and mass starvation will follow the deaths as Earth enters a new period of cooling, with temperatures not seen since the last Ice Age, researchers in a new paper say.
US-Russia missile sabre-rattling in the Arctic sends threatening political messages but the bigger threat is its lasting environmental damage.
Hiroshima is stepping up efforts to keep the memories of the calamity alive, as the survivors of the bombing, known as hibakusha, get older.
Moscow recently deployed two nuclear-capable bombers in Venezuela, triggering widespread speculation that the country was ready to face any military challenge stemming from the US.
Turkey's President Recep Tayyip Erdogan also says that the Middle East has to be cleansed of all nuclear weapons, in an apparent reference to Israel which is believed to be the only nation in the region to possess them.
US President Donald Trump welcomes the statement by North Korea and says he looks forward to a summit with Kim Jong-un.
In his state of the nation speech, the Russian president said a newly developed nuclear-powered cruise missile tested last year has a "practically unlimited" range, high speed and is easily manoeuvred.
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