people talk with the head of california's environment protection agency, jared blumenfeld, about how the state is addressing our most urgent problems. >>> and, why are we so often teetering on the edge of drought? our climate reporters explain where our water comes from and how it is used. >>> plus, we go to sonoma county to meet carissa cruz, who leads the region's sustainable vineyards effort, where wine, both red and white, is going green. coming to you from kqed at cristin severance is go, this friday, april 22nd, 2022. >>> hello and welcome to the show, this is kqed newsroom, i am priya david clemens. today is earth day. in recognition, we are focusing on climate and sustainability in the golden state. there were sprinkles of rain in the bay area this week but not even a few healthy downpours could reverse the current state of extreme drought we are in. california has a complex system of moving water throughout the state, using major aqueducts, dams, and reservoirs. still, the supply of water never seems to quench our increasing thirst. why is that? several of our reporters and