Land-use and the impact of man on the environment are two critical topics. City, irrigated fields and desert in Arizona #Proximapic.twitter.com/mHkfBjS7PD
samedi 21 janvier 2017 à 10:14Land-use and the impact of man on the environment are two critical topics. City, irrigated fields and desert in Arizona 
#Proxima pic.twitter.com/mHkfBjS7PD
