A science journalist identified eight ways the world could end, with deadly biotechnology, Terminator-style robots and nuclear war being the biggest threats to life on Earth.
Brian Walsh, 41, a former foreign correspondent and author from Brooklyn, also addressed climate change, super volcanoes, asteroids, diseases and even aliens in his new book.
End Times: A Short Guide to the End of the World came after Mr. Walsh spent two years examining the horrific ways the world could face in Armageddon.
He estimated both the severity of each disaster and the likelihood of it actually occurring.
Mr Walsh says, " I don't want people to feel that we are" again doomed and the world will end tomorrow and other things.
"I want them to see that in each of these risks there are things that are being done or what we could be doing.
"We have to make sure that these catastrophes do not happen, because you cannot simply hide in a hole for years to avoid this. “
The most credible and disturbing threat to planet Earth is biotechnology, according to Mr. Walsh.
He fears that extremist scientists who experiment with diseases can produce a supervirus that can resist vaccines and antiviral drugs, with the intention of taking a large amount out of the human race.
The use of genetic engineering in diseases, he notes, can change people's lives for the better, but the catastrophe that can occur if done incorrectly or in the wrong hands can put an end to the world.
Mortality from a disease such as this or more recent aha Ebola, combined with the degree of infection from colds can cause chaos, creating "perfect bioweapon."
Mr Walsh says: This is the ability to use new technologies such as editing genes for engineering viruses that would be worse than, infectious and more deadly than anything in nature. "
In one example he uses, the Johns Hopkins Health Center in Washington DC found that 150 million people would be killed by a biotechnological disease – 2 percent of the world's population.
The new effect of this also turns out to be expensive in the experiment as economies collapse and unemployment rises.
The terror caused by the public awareness that the killer disease is not as ugly as it usually is, but caused by the "malice" of the radicals or "an alienated scientist" will only contribute to a pandemic.
And if produced, the strain could be repeatedly introduced to the public, leaving doctors and scientists fighting a lost battle to treat the affected.
"It's worrying because just a normal disease can kill many people," says Mr. Walsh, "but if you create something in the laboratory on purpose or by accident, it would be even more powerful than anything in nature, then it is really dangerous. "
Criminals may not be that far from accessing deadly bio-weapons.
Mr Walsh warns that unlike in the past, only a small number of twisted virologists are needed to make terrorists dream come true.
And, as he adds, there are about 1 million scientists who have the capacity to undertake a similar task.
But there is hope.
Mr. Walsh is also burying himself in the connected world of gene sequencing, where researchers now have the means to quickly diagnose diseases to stop their spread undetected.
He says it
This, Mr. Walsh says, can be a way to counter a supervirus epidemic – with an equally powerful engineering antidote that can suppress bugs in the affected before killing millions.
Another product of man's huge advances in technology is the fear that the Terminator movie may already be realized.
A breakthrough in artificial intelligence (AI) has blown up over the last decade as creators want to meet the growing demand for robots to facilitate home life.
But can it threaten the world in the same way as Arnold Schwarzenegger's cyber-killer in 1985.
Another product of the great advancement of people in technology is the fear that the movie about The Terminator (pictured) can now be implemented
Mr Walsh Miss so: "If we can actually develop an AI that is truly intelligent, it can think of a talent as a creature that is really disturbing. "
He warns:" It may mean that it can conquer us, literally. "
In a shocking demonstration of the transfer of power, he added:" We will be accountable. "
The threat stems from the fact that computers are now" learning to learn, "taking away the control that humans have.
Fortunately, Mr. Walsh says that machines are currently restricted by humans in what they
But their ability to store vast amounts of data and process it much faster than the human brain means that they can become far superior to intellect – "super intelligent," as he puts it Mr. Walsh.
And our wide presence on this planet, according to the author, could hinder the plans of the robots and lead to our disappearance, in the same way that humans have less intelligent animals, like the dodo and western black rhino.
Yet, as with bioengineering, there is a downside – since the creation of over-intelligence could lead to super opportunism
The potential to live forever through "consciousness in the virtual sky" could make AI our ally and savior, not a murderer.
At this stage, however, Mr. Walsh says, "It's really hard to say [which way it will go] because it depends on what you do with AI.
"We are essentially at the top of this planet's food chain because we are the smartest created species."
And yet he adds, "But if we create a smarter species than us, it would be potentially disturbing . "
The Nuclear War is probably the largest
The huge stockpile of weapons that came after World War II and increased tensions between superpowers such as the US, Russia and China in recent years have the potential to cause disaster.
The largest and most powerful fusion bomb ever blown is the RDS-220 hydrogen bomb, wn as the "King Bomb".
The kernels were tested by the Soviet Union on October 30, 1961, making it more than 50 years old.
Nuclear war is perhaps the most discussed and expected way the world will end (file photo)  But the devastating bomb had the explosive power of 3,800 Hiroshima bombs and sent a mushroom cloud of 130,000 feet, or four and a half Mount Everest.
It is estimated that 166,000 deaths have occurred as a result of the attack on Hiroshima, meaning King Bomb has the potential to eradicate 630,800,000.
This is about two in the United States.
Mr Walsh calls the nuclear threat "the last veil of humanity."
"[Nuclear war] is still a major concern and has actually worsened in recent years, as you already have. EurLex-2 en With the US under Trump, Russia under Vladimir Putin, both have been withdrawn from global arms control treaties,"
Referring to the massive explosion of Nyonoksa in Russia on August 8, he added: "You know that a few weeks ago we saw the catastrophe about one of its nuclear weapons programs in Russia.
"This is quite disturbing and you see a lot of aggression there, as well as in China."
In his book, Mr. Walsh delves into the history of the nuclear bomb and traces it since its creation in World War II during the Cold War. war to your own experience of the nuclear threat.
He notes how the American scientists and military commanders at that time
The largest and most powerful fusion bomb the ever-detonated bomb is the RDS-220 hydrogen bomb, known as the "King Bomb" (pictured)
He believes that for politicians then and now the short-term success of having a more powerful nuclear arsenal overshadows any attempt to consider the long-term threat.
He says, "I think we have to choose leaders who are smart enough to move away from ba, we realize that we do what we do at the end of the Cold War, where leaders come together and create agreements that reduce the heads of war.
"We need people, the public, to push them to do this. There used to be public opinion about it, but they are not as attached today. "
The prospect of a nuclear war remains incredible and unthinkable in the life of everyday people.
This "still refutes reality," he adds.
Mr. Walsh feels, despite the threats from the other seven factors discussed in his book, that nuclear energy is "the most significant existential risk we face. at the moment, today. "
He tells us that there is no protection against them and that they have the potential to" ruin the whole planet and even end our species. "
He notes to a man," It freaks me out to know that my son was born in a world where that fear is very real again. "
However, Mr. Walsh discusses the things that people can do to survive a nuclear war.
It may be surprising, he says," patting and concealing is actually good advice.
Yet, this is only for small-size nuclear weapons, such as the kiloton-ra nge bomb.
In the event of a total nuclear war, he quotes historian Alex Wellerstein as saying, "You can't do much."
Weight: 5/10  Supervolcanoes are the most dangerous natural existential threat, according to Mr. Walsh.
Dangerous asteroids can be traced for decades before they can hit Earth, while humans know much less about the much closer to home threat of volcanoes.
And the devastation can be scheduled to happen at any time, with Mr Walsh quoting the conclusions of Bristol University scientist Jonathan Rugge that the explosion could be once every 17,000 years. a dangerous natural existential threat, according to Mr. Walsh ” class=”blkBorder img-share” />
Supervolcanoes (stock photo) are the most dangerous natural existential rubs to eat, according to Mr. Walsh
The last one was over 26,000 years ago, which we were late.
Mr. Walsh cites Yellowstone Park in Wyoming as a sobering example.
At the home of the world's most famous super volcano, he has seen three devastations in the last 2.1 million years, writes Mr Walsh, and he is still heavily active.
If it were to explode, it would be life-threatening as the magnate casts out of its 28-mile-wide caldera, caused by the last blast 640,000 years ago.
Mr Walsh outlines how a super volcano could potentially put an end to
There will be powerful earthquakes as magma enters the earth's surface, followed by a "titanic eruption", until a huge toxic discharge erupts through
to swallow 40 miles around the national park, and continue to spit ash and gas for days.
It is these gases that pose a wider threat to life on Earth, as they would eject 15 miles into the atmosphere and sink much of the United States into the darkness, tearing people's tissues and feeding into their lungs. [1 9659105] Mr. Walsh cites Yellowstone Park (pictured) in Wyoming as a sobering example. At the home of the world's most famous super volcano, he has seen three devastations in the last 2.1 million years, writes Mr Walsh, while he is still very active ” class=”blkBorder img-share” />
Mr Walsh cites Yellowstone Park (pictured) in Wyoming as a sobering example. According to the world's most famous super volcano, it has seen three super destructions in the last 2.1 million years, writes Mr. Walsh, and he is still very active