BIG is a national network for advancing Green Village Building, its signature initiative. Through its programs, activities, courses, and enterprises, BIG reminds generations of their great cultural legacy of land stewardship and collaborates to reinvent that legacy here in the age of climate change. It teaches communities of color the risks of global warming and the health and wealth opportunities of the new green economy, with a focus on recreating community wealth by cultivating next generations of engineers and new generations of green manufacturers. Informed and inspired by America's great Underground Railroad story, its system teaches the primacy of self help and the importance of allies across the bounds of race and class. Its vision is self sustaining black communities everywhere. Its mission is to link, leverage, and lead through a new breed of environmentalists. Its goals are to invent, invest, manufacture, and merchandise, our communities into walkable, self-reliant, mixed-income villages.