The director of the UNESCO World Heritage Centre said it was ___(1)___ everyone to protect these sites. She said: "World Heritage is humankind's ___(2)___ heritage, and the responsibility for its conservation is shared by everyone." She welcomed government efforts at reducing what they take from the Earth, saying: "The WWF's report comes at a time ___(3)___ governments and the private sector around the world are stepping up their action against harmful extractive uses." However, the WWF said that more than 11 million people worldwide ___(4)___ on World Heritage sites for food, water, shelter, jobs and medicine, and that non-stop development could harm ___(5)___ as well as the environment.