Dr Ron McDowall, ONZM, has a life full of danger, not just from cleaning up environments contaminated with the most toxic chemicals known to man, but also because they are found in some of the war-torn and unstable regions on earth. McDowall presents here for Element magazine's Game Changers speed talks, published on the last Monday of each month in The New Zealand Herald.
http://www.youtube.com/watch?feature=player_embedded&v=31s9Gjqe6Bg
