The article deals with the scientific and methodological support of the organization of the process of studying Russian and world environmental situations. It is based on the implementation of co-evolution and sustainable development ideas. The concept of "environmental situation". presents an analysis of the scientific approach to the rating of environmental situations. https://www.bekindtopets.com/quick-find-Tuner-DT8170010007060-Optimized-Stock-Tune-Only-for-EFI-Live-Spade-2016-Colorado-Canyon-2-8L-LWN-big-savings/