Water, water everywhere but not a drop to drink: All five of the most popular posts last month focused on water scarcity.

The final two parts of our “Choke Point: Tamil Nadu” series, which explores the conflicting demands for water, food, and energy in the South Indian state, took the top spots. In June’s most popular post, Circle of Blue’s Keith Schneider reports on Tamil Nadu’s leadership in India’s transition to solar and wind energy, which use far less of the country’s scarce water resources than coal and nuclear power plants. Schneider also wrote “New Media Helps Galvanize Tamil Nadu to Fight a Toxic Legacy,” which describes an environmental activist’s fight against industrial water contamination.

“The issues confronting California, Cape Town, São Paulo, and many other communities around the world are not dissimilar and emphasize the need for a new way of looking at water,” writes Scott Houston in “Historic Drought Prompts Water Innovation in California – Can It Be a Model?”

“Opportunities must be recognized to link defense, diplomacy, and development efforts, particularly in the context of water management,” said Roger-Mark De Souza at our May 9^th event on “Water Security and U.S. Foreign Policy in India, Pakistan, and the Philippines.” Shlomi and Ariel Dinar present the findings of their new book on water diplomacy in “Lessons From International Water Sharing Agreements for Dealing With Climate Change,” arguing that with climate change stressing already scarce shared water resources in many regions, “the full toolbox of water diplomacy is clearly needed for the challenge ahead.”

1. Tamil Nadu Leads India’s Historic Turn to the Sun and Wind, Keith Schneider

2. New Media Helps Galvanize Tamil Nadu to Fight a Toxic Legacy, Keith Schneider

3. Historic Drought Prompts Water Innovation in California – Can It Be a Model?, Scott Houston

4. Water Security and U.S. Foreign Policy in India, Pakistan, and the Philippines, Namita Rao

5. Lessons From International Water Sharing Agreements for Dealing With Climate Change, Shlomi Dinar and Ariel Dinar