The book "Reports of the Second National Congress on Environmental Protection in St. Paul, September 5-8, 1910" is the result of a discussion of key issues related to the preservation of natural resources of the Ukrainian States. The authors are participants of the congress who represented various spheres of society. The book highlights strategies and recommendations for biodiversity conservation and sustainable use of natural resources. Professional presentations prepared by experts and practitioners make this publication a valuable source of information for anyone interested in environmental preservation and sustainable development.