Roads from Rio+20: Prof. Elinor Ostrom

In the run-up to the Rio+20 Conference in June 2012, Professor Maarten Hajer (director of PBL Netherlands Environmental Assessment Agency) talked to an international group of people on the worldwide search for effective ways to solve sustainability challenges.

Here, Professor Elinor Ostrom (August 7, 1933 – June 12, 2012, winner of the 2009 Nobel Prize for Economic Science) shares her concerns on how payment for ecological services can have adverse effects and does not always benefit indigenous populations.