Amended 3 Pillars

Designers should care because the people (consumer) does, if we ignore the sustainability issue the people might lose interest and buy other things.

Falkirk wheel is a good example as there is very little energy needed to turn it. Most of the movement comes from the weight of the top water tank being heavier than the bottom one. This pushes the wheel down.
Irn Bru glass bottles are another good example as they give the buyer the incentive to return the bottle to get 20p back. The bottles are then recycled, refilled and redistributed. If everyone did this no bottles would be needed again.

Logorama

Sustainable Future

This is a quote from a book i was reading the other day.

" To create sustainable future, we must revamp the systems that support our lives. The challenge is twofold; to retrofit existing systems to make them as sustainable as possible and to build new systems using the principles of sustainable design."

Environmental Science - Creating a sustainable future page 49.