Professor David Sanderson specialises in urban disaster, urban resilience and humanitarian aid. We hear almost on a daily basis about a disaster going on somewhere in the world, David weighs in on why we are seeing so much of this happening and what actually constitutes a disaster. He also talks about the role of aid and what actually is effective humanitarian aid, and how our environment directly influences our health.

You can also watch this episode at www.DrRonEhrlich.com.

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