Akademik

energy conservation
  attempts to limit energy use so that the growth in overall global energy use is slowed. Idealists wish to see absolute reduction in energy use but perhaps a lower per capita usage is a more appropriate goal. Strategies may be threefold:
  abstention - people deliberately consume less
  greater efficiency - either through new technologies or through changing habits
  developing renewable sources of energy

Geography Dictionary & Glossary for Students \\ ITS Tutorial School (ITS) - Hong Kong.