Hey thoughty2 here, nobody can predict how long humanity has left on this planet. According to climate alarmists, with a latter-day Jun of our kin, there must hurt. We have about 10 to 20 years before humanity is killed off by its own industrial desires.
But more rational science says we have anywhere from fifty to hundreds of years before the effects of climate change reached the point of no return. If, however, climate change IVA turns out to be the biggest scam in human history or technology, comes to the rescue and reverses co2 emissions, then we could be in for a significantly longer stay on this planet.
The optimist in me believes both of these options are much more likely than what the do mongers are espousing, but climate change, isn’t. The only threat to our survival over risks include nuclear war, famine, an asteroid strike a deadly disease pandemic or killer AI robots.
Whatever is the cause of Earth’s demise and whenever it happens, humanity will have hopefully spread out into space and colonized other planets over solar systems or over galaxies and humanity may survive, but back on earth.
What would happen if, hypothetically every human alive? Suddenly disappeared tomorrow and in millions of years time, when the intergalactic aliens return to explore the lost place, an intelligent species once called home will they discover any remnants of human life? Will they be able to tell we were here after Nature, has reclaimed everything we know? How would they know that anyone ever lived on this hunk of rock? What is the very last thing that humanity behind? I will tell you at the end of this article and the answer is rather disturbing, but first let’s, walk through our hypothetical scenario, so every human on the planet has disappeared.
What would be the very next thing to disappear? Well, it would be the noise within seconds. Planet Earth will be cloaked at a spine-chilling silence globally. The two biggest sources of constant background noise are human voices and traffic with no human activity and nobody around to drive vehicles.
The constant low frequency background home.you have grown accustomed to will stop, go to any isolated expansive Nature Reserve today, and you’ll quickly realize that even with all those animals and birds, it seems blissfully quiet humans are tremendous noise polluters.
The next thing to go will be the great machines of Industry and energy production that keeps civilization running within a few days to a few weeks. Every means of power production will shut down. Coal and gas-fired power plants will be the first to go as they would quickly run out of fuel.
Nuclear reactors, on the other hand, are refueled just once every two years. What’s after a couple of weeks? Their automated computer systems would safely shut them down to prevent a meltdown. We are long past, the chernobyl days when human activity was the arbiter standing between a safe shutdown and the meltdown computer systems have long been in place to halt reactors before critical conditions can be reached.
So, even without a single humans who watch them, the likelihood of a nuclear disaster in modern reactors is actually somewhat low. Although there are a number of older nuclear power plants dotted around the globe, that certainly would fail and release toxic radiation into the atmosphere.
There could be enough to induce a nuclear winter. Even wind farms would grind to a halt due to a lack of lubricant after a few months, and solar panels would eventually collect too much dust and debris on their surfaces to functional fairly quickly.
Planet earth would go dock and be instantly thrown back into the Stone Age within the first two months. The pets that are able to escape their abodes and avoid starvation would become feral. Meanwhile, wild animals would gain the courage to enter and reclaim our cities.
They would now be the Masters next to reclaim. Cities would be Mother Nature within as little as five years. Two great cities of the world Tokyo, London, New York, would be consumed by plants. Ivy and moss would scale the tallest skyscrapers whilst down below the sidewalks, and roads would be torn apart by weeds and trees, pushing their way through the cracks within 25 years.
Desert cities like Dubai and Las Vegas will be encased in a mountain of sand. In the immediate decades after our disappearance, the cities and great mega structures that stand as monoliths of human trade, industry and art would begin to crumble due to a lack of general maintenance, weather erosion and plants winding their way through water and metal.
Even the sturdiest man-made structures would eventually give within 300 years, most of Earth’s, suspension bridges will collapse and crash into a watery tube after 700 years. Many brick and wood buildings, specifically the millions of square miles of suburbs, would be consumed by nature and begin to rots, crumble and fall.
The steel and glass which makes up most of our mega cities would wear a little better alone, consumed by nature and now home to a menagerie of wild animals. It would be roughly 7,000 to 10,000 years before they collapse into a heap of dust.
Cities like Singapore. Would stand for thousands of years as an eerie natural theme park, a Museum of lost civilization, stone buildings would last for a few millennia. Stone is one of the least reactive building substances, so it has a tendency to endure for a long long time that’s, why we still have Roman architecture to marvel at 2,000 years later after 50,000 years.
If aliens visited earth there would be no visible signs that intelligent species ever lived here. Mother nature would have returned the earth almost entirely to its pre human state, but there is one man-made structure that would still stand millions of years.
After all, traces of humanity have long vanquished into the soil. Can you guess what it is? No, it’s, not not food services. It is that of a great tourist attraction. Mount Rushmore Rushmore is carved out of granite.
The second hardest, naturally occurring material on earth after diamond granite, is also extremely stable and largely unreactive, with the mountain reaching over 1,700 meters tall water erosion is unlikely to be an issue and being located in one of the most landlocked locations in the United States.
The moisture in the air contains very little salt from the ocean here, so what wind erosion there is is extremely gentle. All of these factors means that Mount Rushmore our roads at a rate of one inch, 10,000 years after 1 million years.
There will be a slight loss of definition to the famous faces, but it’s, estimated to be at least 7.2 million years before the presidents are no longer recognizable. Yet, after all this time, you would still be able to make out the basic round shapes of their heads, that’s, incredible, but fast-forward to 10 million years after humans quit planet Earth and there will be no visible signs of our civilization all books And records of thousands of years of human endeavor will be long gone by this point.
The unrelenting force of entropy will have taken its cruel toll and the once ordered hive of humanity will have disintegrated into a chaotic maelstrom of natural obsolescence. There will be zero evidence of our story or will err.
Perhaps there is one thing that we will leave behind. If you want to know what humanity will leave behind well, there is only one thing that will always be here: a permanent ring. We have carved into our planets tree trunk.
There is one and only one human creation that Mother Nature can never entirely get rid of plastic. You may have heard that plus it can take hundreds or even thousands of years to decompose, but that’s.
Not the full story: decomposition is defined as microbial organisms, feeding on a material and thus breaking it down and through enzymatic action, transforming it into another substance. In other words, what we observe as Rossing.
The issue with plastic is that, unlike almost every other substance, microorganisms don’t feed on it. They simply don’t, recognize it as food. What if I leave a plastic bag outside it won’t still be in one piece in ten years time never mind a few million years true, but when plastic breaks down Tiz it’s, actually decomposing, at least not in the way That’s.
The commonly accepted scientific definition of decomposition describes plastic, simply breaks down into smaller and smaller pieces of plastic plastic is created from polymers synthetically derived from oil.
Sure plastic starts. Life is a natural substance, but by the end there is nothing natural about it. Unlike an apple or a piece of wood in millions of years, a plastic water bottle left somewhere in the wilderness will still exist as plastic.
It will just be in millions of tiny plastic pieces and distributed over hundreds, potentially thousands of miles. Some pieces will be in the soil, some in the ocean, but many will have embedded themselves permanently into Earth’s rock layer.
This means that in millions of years, aliens will find a planet with no immediate trace of human civilization, but when they dig a little deeper, perhaps by mining and examining rocks, they will find something odd.
They will discover that the entire planet is coated for seamless layer of plastic because Sheeran & # 39. S have already created enough plastic to coat the earth many times like a disturbing but telling mark eternally edged into the planets long historic rock record.
This plastic layer by that point in time will be many miles under the Earth’s surface, but it will be there a sad but perpetually present monolith to homosapians brief brief existence. That is, unless scientists are successful in developing microorganisms, that can digest plastic decomposing it properly, which is exactly what some laboratories are currently doing.
But in this scenario we are presuming that humans disappeared tomorrow before such an invention, but don’t get downbeat, because I have full and, I think justified confidence. But this is not the future of humankind.
Plastic uses a short-term issue that will hopefully be solved very soon by a raft of competing technological advances, of which there are many in the pipeline and thus for our survival. Who knows, we may still be inhabiting the planet in some form in ten million years, if not many many other planets, thanks for watching.
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