If you've flown across Nebraska, Kansas or western Texas on a clear day, you've seen them: geometrically arranged circles of green and brown on the landscape, typically half a mile in diameter. They're the result of pivot irrigation, in which long pipes-on-wheels rotate slowly around a central point, spreading water across cornfields.
Yet most of those fields are doomed. The water that nourishes them eventually will run low.
Alexandra Chen, a specialist in childhood trauma, is on her way from the Lebanese capital, Beirut, to the southern town of Nabatiyeh, where she's running a workshop for teachers, child psychologists and sports coaches who are dealing with the Syrian children scarred by war in their homeland.
"All of the children have experienced trauma to varying degree," explains Chen, who works for Mercy Corps and is training a dozen new hires for her aid group.
Most people associate the Nile with Egypt, but the river also flows through South Sudan, where much of it is bordered by jungle. That makes it a excellent destination for rafting and wildlife enthusiasts, says travel guide author Max Lovell-Hoare.
Anoushka Shankar began playing sitar with her famous father, the late Ravi Shankar, when she was 4. But until recently, she'd never entered a studio with her other famous relative, half-sister Norah Jones.