Very useful tip.

"It would be hypocritical for us to work for environmental change without encouraging customers to think before they buy. To reduce environmental damage, we all have to reduce consumption as well as make products in more environmentally sensitive, less harmful ways. It’s not hypocrisy for us to address the need to reduce consumption. On the other hand, it’s folly to assume that a healthy economy can be based on buying and selling more and more things people don’t need – and it’s time for people who believe that’s folly to say so."