These last years the range of activities and the number of countries in which LHL promotes projects, has increased. Themes are the support of schools, forest conservation, reforestation, organic farming, composting, drip irrigation, fuel wood saving stoves, solar energy (photovoltaics, training in the small-scale production of solar lamps, solar dryers), village development, building of toilets, low-cost housing using PET-bottles, awareness-raising projects in Germany (for students, teachers and evening universities).