The Hoover Dam was the world's highest and most powerful dam when it was completed in 1936. It spurred the agricultural and industrial development of the US Southwest, and destroyed the Colorado River's rich downstream fisheries.
The engine that transforms the lives of millions of Chinese citizens like Li Liguan is China Development Bank (CDB). The bank channels capital to key sectors and projects in the world's fastest growing economy -- an essential role in any development state.
Corruption is literally built into the foundations of modern China. The construction and infrastructure sectors are two of the most corrupt in country, putting at risk China's vaunted development, and also potentially endangering its neighbors.
The Three Gorges Dam on the Yangtze River is the world's largest hydropower project. Now the Chinese government has officially acknowledged the project's serious social, environmental and geological problems.
This decade will be remembered and felt for its impact on Nature: the species that were saved and those that were lost; the heating of the planet; the forests cut down and those that continue to provide oxygen to our children's children.