This book accumulates knowledge across a span of sciences to parameterize the global ecodynamic process. The discussion considers basic global problems of the Nature-Society-System (NSS) dynamics and reviews key problems of ensuring its sustainable development. The book includes an analysis of the present trend in changing ecological systems and estimates characteristics of the present global ecodynamics. Emphasis has been placed on the accomplishment of global geoinformation monitoring, which might provide reliable control of the environmental processes development by thus obtaining predictive estimates of the consequences of anthropogenic projects. The authors propose a new approach to NSS numerical modelling and give demonstrative results of modelling the dynamics of this system's characteristics in cases of some scenarios of anthropogenic impact on the environment.