Last week, Google labs released a new language tool, the Google Books Ngrams Viewer, that lets you plug in any word or short phrase and see how often they occurred in published books over a designated period of time.
While the technological tool itself is certainly worthy of its own post (looking at you, Peters!), it sure is fun (or, at least, interesting) to see how various words and phrases relevant to a particular field have played out over time.
Nicola already went ahead and tracked America's diet using Ngram. Following her lead, I couldn't help but wonder how various environmental terms have played out in literature over the past 100 or so years.
















Robin Williams performs for military men and women as part of a United Service Organization (USO) show on board Camp Phoenix in December 2007
Gif of Robin Williams via 
People on a beautiful hike.Photo credit:
A healthy senior couple.Photo credit:
A diverse group of friends together.Photo credit:
A doctor connects with a young boy.
Self talk in front of the mirror.Photo credit:
Lightbulb of ideas.Photo credit 

Superstructure of the Kola Superdeep Borehole, 2007 

