Three Gorges Dam Development and Reform Commission of China, 366 grams of coal would produce 1 kWh of electricity during 2006. At full power, Three Gorges reduces coal consumption by 31 million tonnes per year, avoiding 100 million tonnes of greenhouse gas emissions, millions of tonnes of dust, one million tonnes of sulfur dioxide, 370,000 tonnes of nitric oxide, 10,000 tonnes of carbon monoxide, and a significant amount of mercury. Hydropower saves the energy needed to mine, wash, and transport the coal from northern China. From 2003 to 2007, power production equaled that of 84 million tonnes of standard coal, reducing carbon dioxide
Ziz Gorges caravan trading route between settlements of the northern Sahara. In the 1st century, the Roman general Gaius Suetonius Paulinus crossed through them while leading troops across the Atlas Mountains. Ziz Gorges The Ziz Gorges are a series of gorges in Morocco on the upper course of the Ziz River. They are defined by two gates at the southern and northern ends. At the southern end is the Hassan Addakil dam and lake. Nearby is the Tunnel de Légionnaire built by French colonial troops in the 1930s in order to create a passageway to the Ziz Gorge. The gorge was formed