David Polster is a recognized expert in the restoration of drastically disturbed sites. He has over 40 years experiences in the restoration of mines, landslides and industrial sites. He has developed a wide variety of soil bioengineering techniques for the restoration of steep and unstable slopes. David is the past-president of the Canadian Land Reclamation Association and sits on the board of the international Society for Ecological Restoration (SER). In 2013 he was awarded the John Rieger Award, the top international award in ecological restoration from SER.