I like and agree with whachu say. However, I'm afraid that not everybody thinks so and votes for eco-friendly solutions. Moreover, I read different sources and statistics and concluded that the population growth consists of untaught communities (for example, African areas). They don't know what...
I can give examples of each one: so indigenous is used by the native inhabitants of a region, it is a part of its cultural heritage, for example - electromagnetic monitors or imaging systems such as CT or MRI scans. An example of appropriate technology would be a passive solar building design or...