Our environment, in particular water, land and air, has been the victim of all sorts of attacks, either of natural, e.g. hurricanes and earthquakes, and/or of man-made origins. Waste and pollution from man-made activities such as wars, explosions, accidents, chemical spills, etc. has caused enormous threats to all life forms on earth. This video gives a summary on the 25 biggest environmental disasters of history, however waste and pollution remain to be major threats for all life forms on earth.