3 years
Because of the lack of heat, pipes burst in the cities of the colder regions. Gas leaks cause huge fires that can only be turned off by heavy rain. The buildings begin to crack: cracks and structures become unstable. The lack of a warm environment causes the disappearance of cockroaches in the cities of warm temperature, after one or two winters.
10 years
Erosion caused by leaks and the combined action of the elements end up collapsing a large number of roofs of houses
20 years
The iron columns supporting the overhead railways New York are completely corroded. The Panama Canal away by the advance of vegetation and the Americas are united again. Vegetables are degraded to again become inedible species.
300 years
The suspension bridges end to collapse. The walls of numerous dams no longer resist the lack of maintenance and water leaks flood the nearby cities.
500 years
The suburbs of the cities are invaded by forests. Trees grow through the remaining dishes, appliances and cookware aluminum and stainless steel.
15,000 years
The walls of New York and other big cities finally succumb to the advance of glaciers. The only structures that remain relatively intact in the world are the underground, for example, tunnel Channel.
100 thousand years
Levels of carbon dioxide in the atmosphere back to the existing values before the disappearance of humanity (though this could perhaps take a little longer).
10.2 million years
The bronze sculptures are still recognizable.
6500 million years
The earth melts under the influence of the Sun, which has already absorbed the other inner planets, marking the inevitable end of our planet.
