If all humans suddenly disappeared from Earth, the planet would gradually heal and change in profound ways. Here’s what would likely happen over time:
In the first few days:
Lights would go out: Power plants, especially fossil-fueled ones, would shut down due to lack of maintenance. Solar and wind power might last a bit longer.
Animals would roam freely: Domesticated animals would escape homes and farms, struggling to survive in the wild.
Within a few weeks:
Subways and tunnels would flood: Without pumps, underground systems in cities like New York would fill with water.
Pets and farm animals: Many would die from starvation or predation, but some would adapt and become feral.
After a few months to years:
Buildings would start to decay: Without maintenance, roofs leak, metal rusts, and plants start growing through cracks.
Wildlife would thrive: Endangered species would likely recover quickly. Forests and grasslands would expand into urban areas.
Air and water would get cleaner: With no cars, factories, or agriculture, pollution would drop dramatically.
After decades to centuries:
Cities would crumble: Skyscrapers would collapse, streets would be overgrown, and only the strongest structures would remain.
Nature reclaims the Earth: Forests, jungles, and grasslands would take over almost all land, similar to how Chernobyl has become a wildlife haven.
After thousands to millions of years:
Only traces of humans would remain: Some stone structures (like the pyramids or Mount Rushmore) might survive, but most evidence of our existence would erode or be buried.
New species evolve: Without human interference, evolution would continue and entirely new ecosystems would emerge.
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