New ask Hacker News story: Ask HN: Examples of well designed statistics websites?

Ask HN: Examples of well designed statistics websites?
2 by kirso | 0 comments on Hacker News.
I am looking for an inspiration for a side-project which includes a counter / stats to spark emotion from the user. I wonder if there are any great websites that present data (like CO2 released into the air each year) that is being counted on homepage or anything else along these lines?