Tuvalu, consisted of 9 circular coral islands, is located in the South Pacific. The land area of Tuvalu is only 26 square kilometers and the highest point is only 4.5 meters above sea level. As the global warming, Tuvalu will be submerged in 50 years and therefore the nation will be the first one to migrate the whole country because of global warming.

When a small propeller plane is at the 1500 meters high altitude, a Crescent Moon shaped island are displayed in the endless expanses of the South Pacific. As the plane falling, Crescent Moon gradually became a touch of the plains, narrow, long land into the sea like the one "rope." Along the "rope", the aircraft slowly landed in the capital, Funafuti airport runway, which is Tuvalu's only a small airport. Tuvalu is an isolated island, where is only a group of ships one month and a flight one week. Walking in the only one street in Tuvalu, your heart would be up and down because the left is the choppy sea, turn right to see, it is still the sea. In the middle of the low-lying land where the road will emerge pool of water from time to time and you will feel it will sink together with the road. With an average width of only twenty to thirty meters, a bath can be given a thorough wash from head to toe just by 23 meters high waves. "Do not come running after dark, it will go to the sea without careful," A local resident told, "Tuvalu is too small and topography also is flat, high tide will be sea water in many places and even the center road of the island." He also advised us not to wear leather shoes because a wave which crossed the entire island will directly flow to the other side when a casual tide happened.

Tavala Katea provides a set of test data which show that 16 years from 1993, a total of Tuvalu's sea levels rose 9.12 centimeters, according to this figure, 50 years later, the sea level will rise by 37.6 centimeters, which means that plans Tuvalu at least 60% of the country completely sink into the sea.