After more than 30 years of meeting at Lake Balaton, the ripples continue to spread outward. Key resources on systems thinking and sustainability and the activities of members are also shared here.

Video and Film

Special Issue of The Solutions Journal (September 2012)


The Limits to Growth, by Donella H. Meadows, Dennis L. Meadows, Jorgen Randers, and William W. Behrens Ill (1972)—This groundbreaking study modeled the dynamics of our human presence on the planet. Read online or download a PDF copy.

For an extensive list of books by our founders and other members, please visit our Books page.