Is humanity in solidarity?

Problems of the "single" and "unique" condition in the socionatural history of mankind for the formation of solidarity in civilizational dynamics are discussed in the paper. The role of culture of thinking, universally valid civilizational criteria, innovative thinking techniques, and harmonization in values of world cultures in the formation of humanity solidarity is justified. The article is dedicated to the memory of a full member of the International Academy of Sciences (Health and Ecology), Russian Section, Professor N.N. Moiseev.