In this Monday, May 14, 2012 photo, Palestinian girls walk past an overflowing garbage container in Kufr Aqab between Jerusalem and the West Bank city of Ramallah. Trying to raise awareness to environment protection, Palestinian officials are encouraging thousands of children to collect compost, visit recycling centers and plant trees. The hope is that the young generation will learn good habits for the future, and maybe even teach their parents a thing or two about conservation. (AP Photo/Majdi Mohammed)