green roofs

The Huffington Post has a piece and photo slideshow today on some of the best green roofs around the world. I particularly love how the roofs become a part of the architecture and design of these buildings to create a real statement.

My boss had mentioned one time she was interested in a green roof for our building, but that would take more than laying down grass as it leaks any time it rains. I'm not sure how complicated or costly it is to implement a green roof, nor how much it saves on electricity, but it would be interesting to get some numbers.