do research useful links one sky the canadian institute of sustainable living one sky furthers appropriate technology systems such as strawbale constructions and pedal powered technologies and is focusing on renewable energy at the local national and international levels the salvadoran centre for appropriate technology cesta is located in san salvador el salvador under the leadership of dr ricardo navarro the chair of friends of the earth international along with cesta and the sierra club of b c we are promoting appropriate technology for landmines victims check spanish wikipedia canada s recent international policy statement includes an opening comment on development canadians cannot be safe in an unstable world or healthy in a sick world nor can we expect to remain prosperous in a poor world