A great research and investigation into the graphics and art of Sister Corita done by Julie Ault (former member of Group Material and still very active).
The graphics range from the religious to antiwar posters. One image from the book show a very active silkscreen workshop with nuns printing ahead perfectly dressed and not a stain on their fingers that too is impressive. Here are some online examples of her work.
Gardending Superfund Sites is an art project that fosters discourse around the issues of nature preservation, industry, and activism. Information and workshops with students and community groups to create a call to action to high tech industries to take responsibility for their actions.