No snowpack, no hay: In the northern Nevada, cattle feed is getting hard to come by, as sources of water diminish in supply. Frederic J. Brown/AFP/Getty Images hide caption

itoggle caption Frederic J. Brown/AFP/Getty Images

There are about 2,000 dairy cows on Pete Olsen's fifth-generation farm in northern Nevada. A new milk processing plant is now putting pressure on Olsen and other dairy farmers to expand the size of their herds. But with the ongoing drought, farmers are struggling to get enough feed for the cows they already have. Kirk Siegler/NPR hide caption

itoggle caption Kirk Siegler/NPR

Extreme drought conditions in California have state officials looking for alternative sources of water, including desalinated ocean water. Richard Vogel/AP hide caption

itoggle caption Richard Vogel/AP

Rice farmer Douglas Thomas watches snow geese take flight over his rice fields in California's Central Valley. Lauren Sommer/KQED hide caption

itoggle caption Lauren Sommer/KQED

The cracked-dry bed of the Almaden Reservoir is seen on Feb. 7 in San Jose, Calif. Marcio Jose Sanchez/AP hide caption

itoggle caption Marcio Jose Sanchez/AP