Our group of 24 Americans and Bangladeshis continued to explore the Sundarbans mangrove forest, rice farming in embanked low-lying islands, and heritage sites of Bangladesh.

Our group of 23 American and Bangladeshi students and professors traveled from the Jamuna River to the Ganges and Gorai Rivers, and then down to an island on the edge of the Sundarbans, the world’s largest mangrove forest.

The developer of a controversial hydroelectric project in Chile has filed for bankruptcy, blaming Andean glacier retreat and droughts for low water flows.

Plants in the same groups often show similar drought resistance independent of the climate in which they grow.

We are continuing our measurements of fresh and saline groundwater in Bangladesh using electromagnetic instruments. We finished our first set of measurements and have now shifted farther east near Barisal where groundwater is fresher.

We continued our electromagnetic expedition to image fresh and saline groundwater into the Sundarbans Mangrove Forest, the world’s largest. While guards protected us from tigers, it was a wild boar that dug up some of our equipment.

I am back in Bangladesh to explore the distribution of fresh and saline groundwater in the coastal zone, needed for drinking in the dry season.

Filtering salt out of water is used in many parts of the world that deal with severe drought, but it can come with its own set of problems.

The city has installed more than 20,000 systems for some its neediest residents.

Scientists say a long-feared megadrought, worse than anything in recorded history, seems to be starting up in southwestern North America.