zach frankel, executive director of the utah rivers council at the great salt lake -- >> 90% of our prescription comes in winter and snow. as our winter air temperatures continue to rise, we're getting less and less snow in our mountains. >> reporter: utah governor spencer cox has declared a state of emergency and called on people in utah to reduce their water use and pray for rain. >> we need some divine intervention. >> when the governor says pray for rain, what do you say to that? >> i say, the lord helps those who help themselves. the question is, are state leaders willing to accept that this is not a short-term drought, but that this is long-term climate change? >> reporter: utah is the second-driest state in the country, but has some of the highest public water consumption per capita. back on the farm, gibson says a continued water crisis means an uncertain future. your family's been doing this 152 years. that's many generations. do you worry this is the last generation of farming in your family? >> you know, i can't sleep at night. most nights. because that's exactly the concern. >> repor

. >> reporter: zach frankel, executive director of the utah rivers council, warns the crisis in utahimpact much of the west. >> the question is, are state leaders willing to accept that this is not a short-term drought but that this is long-term climate change? >> reporter: and this is what scientists mean when they say most of the west is in a mega drought. utah's great salt lake lived up to its name last year. norah, where i'm standing right now, i should be submerged in water. >> o'donnell: wow. that says it all. jonathan vigliotti, thank you. and there is still much more news ahead on tonight's "cbs evening news." new fallout from the approval of a new alzheimer's drug. why three doctors quit an f.d.a. panel. and, did a cyber attack spark a power station fire and a blackout across puerto rico? and a special honor for the teenager who captured that video that ignited a worldwiwide movement.. movement. managing t type 2 diababete? you'rere on it. you may ththink you'rere doining all you u can to m manage typepe 2 diabetetes anand heart didi bubut could yoyour medicatatio more to o