At one point in this video, a beekeeper from New York City says : "It takes a lot of people to pull this off, just like the bees". He was talking about having at least thousands of beehives in the city by greening all the empty and wasted space of building rooftops in Manhattan and it's boroughs.

A lot has been said in recent months about how colonies upon colonies of bees are dying and how their disappearance is multi-billion dollar blow to the agricultural industry as well as a huge, unmeasurable damage to our environment.

What I liked about it is how we can use bees to re-green New York City and Chicago, two of the biggest man-made deserts in the United States.