Hi John,

The San Pedro River, flowing north from Mexico into Arizona, is the largest undammed river in the Southwest. It provides vital habitat for dozens of endangered species and millions of migratory birds. But the river is at a crossroads: A proposed 28,000-home development named Vigneto would bleed it dry.

The Center for Biological Diversity has teamed up with filmmaker Dina Kagan to create a short film showcasing the beauty and imperilment of the river basin. Through animation, graphics and stunning photography, the film explores how this desert river functions and highlights the outstanding diversity of wildlife that depend on it.

We invite you to watch the film. You can stream it for free, but donations are welcome.

Then join us Thursday, Jan. 28 at 4 p.m. PT / 7 p.m. ET for a discussion and Q&A with filmmakers Dina Kagan and Mike Foster, Center staff, and author and naturalist Ralph Waldt.

You have to register to join, so sign up and check your email for a link.

The Vigneto development would devastate the treasured San Pedro River basin by destroying more than 12,000 acres of habitat, depleting the groundwater that feeds the river and leaving wildlife without a lifeline. The Center has been fighting to protect the San Pedro for 30 years — and we need your help now more than ever. We hope you can join us for this special event.