http://www.videojug.com/interview/green-materials-packaging-and-transportation-2#what-are-the-three-pillars-of-sustainability

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This video breaks down what each pillar is and how they work together. It’s an interview with Spencer brown who is the Founder and Inventor of Earth Friendly moving. In this interview he explains how to work along side the 3 pillars’ when designing a product. He also explains raw materials and what is a good material to use as it will generate quicker than other and what is not. The interview is split up into sections and he dicusses many other things such as:
What are the 'four R's' of the enviromentle cycle?
What is 'zero-waste packaging'?
What can i do to make my packaging more reusable?
and many more ...

I thought the way Spencer Brown explained each topic was great as it was as jargin free as possiable and easy to understand he also uses examples to explain further. I have took from this a simple but Thorough understanding of each of them Ecology, Economy and evironmentalism.