The University of Iowa received the Big Ten’s worst grade for sustainability in The College Sustainability Report Card for 2011.

The UI received a C-minus overall, with its worst grades coming in the categories of endowment transparency and shareholder engagement. The grade is down from last year, according to the report.

It covers both campus and endowment sustainability activities at colleges and universities across the United States and Canada.

The University of Minnesota ranked first in the Big Ten with an A.

— by Sam Lane