After two or three days, most of the subway networks will be submerged to stop the pumps responsible for keeping water out of them, which are operated by humans.
10 days after humans disappear, there will be mass deaths of pets and farm animals due to hunger.
After a month, the cooling water of the nuclear power plants evaporates, which would cause a series of nuclear explosions.
A year after the satellite will begin to fall from their orbits around the Earth.
After 10 years, methane will start to disappear from the air, and air pollution will begin to decrease.
After 25 years a vegetation will cover three quarters of the cities, and some cities will be buried in the sand.
After 300 years, metal buildings, bridges and towers will begin to disintegrate due to corrosion.
