This instructable demonstrates three processes:

1. How to build an attractive and efficient main light source for the living room.

2. How to perform the life cycle assessment to quantify its advantages.

3. How to relate those improvements to a person’s ecological footprint.



Too often living rooms a…


By: marc_alain

" Global warming is the increase in the average temperature of the Earth’s near-surface air and oceans in recent decades and its projected continuation."



Carbon dioxide and other air pollutants collect in the atmosphere, trapping in the sun’s heat. The good news, is that there are simple…


By: Weissensteinburg