Al Gore delivered the keynote address to green building professionals at the Greenbuild conference. He praised the leadership of the USGBC for bringing real change to the marketplace. He also urged the crowd to take responsibility for expanding green building globally and to call out greenwashing.

The Princeton Review, today released its second annual Green Ratings of colleges. In this measure of how environmentally friendly the institutions are on a scale of 60 to 99, the company tallied its Green Ratings for 697 institutions based on data it collected from the colleges in 2008-09 concerning their environmentally related policies, practices, and academic offerings. The Princeton Review also named 15 colleges to its “2010 Green Rating Honor Roll” – a list that salutes the institutions that received the highest possible score – 99 – in this year’s rating tallies.