Mark Halle sees investment as critical to addressing sustainable development.

By Mark Halle, Nona Pelletier (Interviewer), Jason E.J. Manaigre (Technical Producer) on April 13, 2009

Mark Halle, Director of IISD's Trade & Investment program, says massive international investment is critical to addressing issues related to climate change and sustainable development. He says there needs to be a shift in focus from investment in old energy systems, to the new renewable and clean energy systems that are required.