The melting of the ice due to global climate change, which also contributes to smaller ice sheets/glaciers, and the increased breaking of these ice sheets.
China believes that building the Three Gorges Dam was an absolute necessity in terms of energy production because it can generate hydro-electric energy from Yangtze River. This hydro-electric-producing dam would generate less pollution than coal-fire generation and would slow the river from overflowing and destroying nearby villages.
