It appears that Chicago Mayor Daley retains his number one green roof mayor position, with Washington D.C. a distant second.
I have not been able to find a ranking for white roofs. There is apparently no "White Roofs For Healthy Cities" organization. If there was, would New York and Mayor Bloomberg top the list?
Toronto, Canada – May 26, 2010 – Green Roofs for Healthy Cities (GRHC) is pleased to announce the results of its 2010 Industry Survey of its Corporate Members. Despite the severe economic downturn last year, the green roof industry grew by 16.1 per cent over the course of 2009. In the Top Ten Cities List, Chicago led the way for the sixth year in a row, with more than 500,000 square feet installed, followed by Washington, DC, co-host of the June 1 & 2, 2010, Regional Green Roofs & Walls Conference and Training, at 190,000 square feet installed, respectively. Read more...

