These series of pictures are selected from NATIONAL GEOGRAPHIC. These pictures include the well-known world heritages and vanishing nature species. For past decades, human have caused the global warming effect by burning of fossil fuels and destroying forest sources. Droughts, heat waves, melting sea ice, floods, and ozone loss are the chain reaction because of the higher and higher temperature. They are jeopardizing our environment. Our earth is suffering the species damage. These selected pictures from NATIONAL GEOGRAPHIC remind us we have only one earth.