Dams built in the Amazon, Mekong and elsewhere are doing great environmental and social damage, washing away their green credentials. Now, a new tool helps assess whether dam projects are economically and environmentally viable.
Turning to low-tech, low-cost approaches to pollution prevention and flood reduction, like planting bamboo, diverts from previous approaches that used brute-force, cost billions of pesos, and failed to work effectively.
Cecilia Tortajada and Asit Biswas –
The countries of the Mekong Basin need to stop blaming each other for water woes and get on with creating a sustainable and coordinated plan for the region, say National University of Singapore's Asit K. Biswas and Cecilia Tortajada.
Joydeep Gupta –
The China-Pakistan plan to build five dams in a row on the Indus will stop the flow of silt to rejuvenate farms downstream, and will reduce water flow in the nine dry months of the year, says The Third Pole South Asia director Joydeep Gupta.
Water plays an important role in global affairs, and water security is critical to peace and security. Strategic Foresight Group president Sundeep Waslekar makes a case for water to be recognised as "a strategic resource of humanity".
International Institute for Environment and Development researcher Jamie Skinner discusses whether tightening up standards to minimise social and environmental risks could shift the debate on hydropower.
Floods have had a devastating effect on China's communities and economy; it will take political will, time, money, and good holistic planning and implementation before flood damages in China can be significantly reduced, say water experts Asit Biswas and Cecilia Tortajada.