An international program for studies of ecological consequences of the earth collisions with the solar system small bodies (from the point of view of the tunguska catastrophe of 1908)

Abstract More than 35 complex expeditions were, organized by authors for investigation of consequences of the Tunguska catastrophe of 1908. The studies of the kguska explosion has shown that, besides the classic meteoritic destruction in the region of the fall, there are also a numbex of extraordinary post-effects (geomagnetic storm, reverse magnetization of rocks and soils, isotopic shifts, various biological consequences etc.). Careful studies of all consequences caused by collision the Earth with the small bodies of the Solar System is aim of an international program created by authors.