DEUTSCHE WELLE – Each year, thousands of tons of trees and shrubs are burned in the ovens and cooking fires of the inhabitants of the Puna highland desert plateau in northwestern Argentina. The country’s EcoAndina environmental group has been trying for years to slow the rate of deforestation by pushing solar systems. Today, several hundred families cook with the power of the sun and bakeries and baths in the villages are powered with solar energy. In addition, several schools have been equipped with simple but efficient solar heating systems. Read More