Our nine-part “Choke Point: Tamil Nadu” series with Circle of Blue has been a must-read on the conflicting demands for water, food, and energy in the South Indian state. In May’s most popular post, S. Gopikrishna Warrier introduces us to Chennai’s tech-savvy social entrepreneurs, who are providing the city’s residents with real-time information on the risk of flooding. (The ninth and final post in the series was published yesterday; catch up on all of them at “Choke Point: Tamil Nadu”).

Also in water news, the Wilson Center’s Michael Kugelman gave his take on the pressing but preventable dilemma of water security in Pakistan. While Pakistan’s challenges stem from domestic policies, “you cannot separate transboundary water management from the ugly, complex, political disputes in India-Pakistan relations,” he argues.

Too much, too soon? Over-intervention in maternal care grabbed two of the top spots. “It comes in the form of underuse, it comes in the form of overuse, but increasingly, the lack of quality is about over-intervention, of losing sight of what is ‘normal’ childbirth and supporting that physiological process,” said Anneka Knutsson of the United Nations Population Fund.

1. Facing Floods, Social Entrepreneurs Push Chennai to Consider New Growth Strategy, S. Gopikrishna Warrier

2. A Little Respect: Saraswathi Vedam on Reducing Over-Intervention in Maternal Care Through More Autonomy, Sean Peoples

3. Too Much, Too Soon: Addressing Over-Intervention in Maternity Care, Nancy Chong

4. The Business Case for Sustainable Development Is Real and Growing, Natalie Co & Tiffany Lin

5. Michael Kugelman on Pakistan’s “Nightmare” Water Scenario, Benjamin Dills