On the example of studies of the Tunguska 1908 explosion was shown that besides formation of crater and ejection of dust in the atmosphere the many others extraordinary phenomena (including genetic) may be caused by collision the Earth with small asteroid or comet. A Complex Scientific International Program for studies of the Ecological Consequences of a Collision of the Earth with the Solar System Small Bodies is offered by authors taking into account the results of 36th years of investigation of Tunguska Event.