The Earth Without Humans: One Year Later.

If humans suddenly disappeared from the world, the first thing noticeable would be the silence. After a year, the sky would be bluer, the air clearer, and the wind and rain would scrub clean the surface of the Earth. Without people, water systems would stop working, electricity would be gone, and homes would be dusty. Grass and weeds would grow uncontrollably, and new plants and bugs would appear. In the long term, concrete structures would crack, bridges would rust, and dams and levees would erode. The world would still be recognizable in a thousand years, but it would reveal how much humans have impacted the Earth and how much constant upkeep is required to keep civilization working.