due to clilimate changnge, the bureaeau of reclalamation proros even greatater shortagages by 2.h thahat, the likelihood of even greater disputes. >> i beeve thate are in period of clclimate change. um, other people say we're just in a sustained period off aridity, , but one thing we doo know is there's not as much water in the southwhwest rit t w as ththere habebeen historicall. and y you can h hear that f from scientntists, and d you can also hehear it fromom navajo eleldero tetell storiries that were pasad down generation to generation. and you put thatat on top of the inincreased impact opopopulaon,, andd it's a doublele whammy. >> 34 years from now, i think it could be bleak. i mean, there are things that could be done. the characters in the film do show u us positive examples. i mean, i--i i laugd d withamie, and the other proroducers of the sh, , becae ththeyaid, " " want you to do a film on water, but we want i it to be a a posie fifilm." and i first signed up for ththa, i was like, "susure, no problem" and then i realized how difficult that is. >> you can't really change