An Ngram of the Apocalypse

This morning, just for kicks, I decided to do an n-gram analysis of the main words I encounter or use in my project: climate change, global warming, apocalypse, sustainability, and resilience using Google Books Ngram Viewer. Here is a screenshot:

I think the conclusions I can make that are useful to my project are:
1. “Climate change” is more often used than “global warming.”
2. “Apocalypse” is pretty much used with the same frequency as before. (I guess that’s a great thing for this project?)
3. We’ve been using “sustainability” a lot. I’ve deliberately avoided using this word unless I absolutely had to, because, well, I feel that it’s overused to the point that it’s losing its meaning to me. This reminds me of this graph by xkcd:

(Original version here.)

I’m a bit sad that this tool only gives me results until 2008. But anyhow, that was an enlightening break before another day of designing, picking typefaces, and writing art/design statements.