Transition to Sustainable Wind Energy photo 12 Monate 0 The majestic Austrian Alps covered with fresh snow in March. photo etwa 2 Jahre 0 Kenyan farmer with a biogas lamp provided by USAID 2013 photo etwa 2 Jahre 0 Wind turbines on a ridge in Uinta County, Wyoming. Original image from Carol M. Highsmith’s America, Library of Congress collection. photo etwa 3 Jahre 0 Science renewable fuel renewable energy photo mehr als 3 Jahre 0