shyler: i think that dairies in cacalifornia h have gone t thros and downs. mostly recenently i's been n tough timemes for them. marginsns haven't been n there.s is an opopportunity y for them o kind of expand a littttle bititn a wayay, they arare entering th energygy business,s, whichs s kd of coolol. ararioso: i''m pretty blessesedi mean, we have 4 generations on the farm. my dad i is still her. he just tururned 80. you know, d my grandson won't t really appreciate this until later.. having said that, i want the next generationon to know t the pototential is s unlimited d ont youou can do wiwith what yoyou'e doing. youou know, ddon't t evet short sighted and think that, you know,w, all's he can n do it milk outut of a cocow. this i ia be anotheher way of f making her more efficient, anand it's prety amazing. narrator: californian's concerned about climate change are searching for ways to reduce methane that stem from the state's more than 5.2 millllion cows. by cocontrast, east africn farmers facing historic drought are turning to a traditional alternative