1) Atlanta is testing out an incentivized recycling program where residents can earn and exchange points for “rewards, gift cards, groceries, and products” with participating retailers. (Hat tip: Mike Erskine)
2a) Rewarding first-graders for eating fruits and vegetables with small prizes.
2b) “‘If you want to know if an urban environment supports cycling, you can forget about all the detailed ‘bikeability indexes’—just measure the proportion of cyclists who are female,’ says Jan Garrard, a senior lecturer at Deakin University in Melbourne, Australia, and author of several studies on biking and gender differences.” From Scientific American.
(Hat tips: Christopher Daggett)
3) A scale that tells the world how much you weigh via Twitter. (Hat tip: Justin Holz)
4) Photos of calorie counting nudges at Freakonomics.