I once saw a television show named “Life After People” where scientists, structural engineers, and other experts speculate about what could possible become of Earth should we face human extinction.
The premise of the show was that only humanity vanished from the planet, everything else remained the same. It’s important to note that unlike most post-apocalyptic shows that “Life After People” steered clear of what wiped out humanity in the first place.
The show focused on examples of urban and biological decay, the collapsing of cities and bridges. The show focused on various points after humanity vanished – one day, one week, one year, 10 years, 15 years, 25 years, 50 years, 100 years, 200 years right through to 100 million years in the future. It predicted so many changes and a vast difference even within a matter of years.
The first thing to happen would apparently be the disappearance of power, with nobody to control the power plants the would shut themselves down in to safe modes. All except power stations that run on water, those would keep going.
Within 36 hours major cities would start to flood due to nobody being around to control drains and sewers.
Within 10 days those dogs out of 400 million that have survived starvation will have to find ways to escape their homes and start scavenging for food.
Within 6 months rodents will have decreased in numbers, without humans they’ll have to return to the wild where they become easy prey. Eventually larger carnivores start to roam our streets and homes where we once lived.
After about a year weeds and grass start breaking through pavements and roads as the planet slowly starts to return to its natural green state.
Forest fires which were once controllable are now raging their way through woodlands and abandoned cities, destroying everything in it’s path. Rome once again burns to the ground as the ash replenishes the soil.
5 years on and many of the worlds most famous landmarks are overrun with vines and weeds. Steel becomes weak and structures that were once strong are now crumbling.
Natures revenge is hard and relentless, it’s taking back it’s world.