One of the main reasons that the Three Gorges dam was built was to prevent flooding further downstream. The need for a dam was highlighted in 1954 when people were killed as a result of flooding of the Yangtze River.
Arab Spring refers to the democratic uprisings that arose independently and spread across the Arab world in 2011. The movement originated in Tunisia in December 2010 and quickly took hold in Egypt, Libya, Syria, Yemen, Bahrain, Saudi Arabia, and Jordan.
Inspired by the 1960s Freedom Rides that travelled across the US' south to highlight and challenge the still pervasive racism of the Jim Crow era, the Palestinian version has been going on for the last three years, bringing dozens of activists from Palestine, the US and Europe to spend two weeks travelling the West Bank, particularly in regions where Israel continues to expropriate land and/or resources.