In the 21st century people fully realized the significance of clean environment and economical advantages of an eco-friendly lifestyle. When the struggle for energy resources reaches its apogee, and their reserves are extremely reduced, the most progressive states are already actively betting on alternative energy sources - cleaner, cheaper, and what is more important - never-ending.
To determine the environmental purity of each country, various statistical research institutes use a variety of indicators, in particular so called The Environmental Performance Index, developed by Columbia and Yale universities. The method is based on an assessment of the environment according to 25 criteria (ranging from air purity and water quality to biodiversity and the use of pesticides).Based on the published results, we are going to introduce you 10 cleanest countries of world suitable for living.
Costa Rica with nature reserves and parks, Switzerland with its mountains, Norway with its fjords, Finland with its cleanest tap water and some other countries are here.Switzerland

Norway

Sweden

Finland

Costa Rica

Austria

New Zealand

Latvia

Germany

Italy
