The History Channel has recently aired Life After People , an exploration of what would happen to the Earth if all humans suddenly left. There is no comment on why or what happened to the people; no stories of disasters, wars, or disease. It is as if they left home and never returned.
The two-hour show outlines what would happen in the first hours, days, weeks, and months, finally taking year increments - 10 years, 20 years, ... 150 years, 200 years, etc. The show discusses how quickly our modern conveniences, like electricity, would fail without human maintenance, contemplates the fate of family pets, and demonstrates how plants would overtake our industrial centers.
As Mother Nature and the ravages of time wear on, viewers are left to contemplate what would be left of the human legacy. Images of the Lincoln Memorial looking much like a forgotten Mayan ruin flash before us. We are left to consider how permanent our structures are and in what form our historical record will survive -- if it will survive.
We often envisage that we will have more to leave behind than our ancient ancestors. Surely archaeologists in the future will have more to go on than we have with pictures on buildings and inscriptions in stone. Even buildings crumble without maintenance in harsh climates. Just how permanent is our legacy? Books and acetate film are specifically considered. Without humans to implement and maintain the climate controls at places like the Getty Institute, these temporary vessels of our knowledge and experience are left to warp, mold, and be reduced to nothing. Our digital items are also not so long lasting, even before considering the availability of playback systems.
Preservation is a constant maintenance task. Time and nature are not our best friends. Therefore it is crucial to consider how important people -- preservation librarians, archivists, etc. -- are to making sure our legacy is saved. These items will not last on their own.