Drought and Doubt on the Rio Grande: A Q&A with Watershed Scientist Martin Castro

As the Rio Grande dries up, Laredo, Texas, could run out of water by next spring. Communities downstream are already going dry.

The Texas-Mexico border is experiencing a historic drought, one in which the Rio Grande, already one of the world’s most endangered rivers, is dwindling at an alarming rate. In the southernmost stretch of the Rio Grande watershed, more than 3 million people in Mexico and the United States rely on the river. The city of Laredo, Texas, which has a populat…