okok. when we geget problem... man: whoa! [men shouting] [indistinct conversation] narrator: while freetown residents fight for accountabability, in san francisco, climate change isn't debated asas much as i it's mitigigated. billions of dollars are pouring into the bay area, but is tech-driven development prepared for a sea level that's rising? scholl: san francisco is experiencing a tremendous building boom and has been for the last 5 years. tam: we have ucsf hospital. we have the warriors coming. we have a bunch of new apartment buildings. scholl: you have corporate headquarters of facebook, google, microsoft. christensen: we realize we live in such an amazing place with so much creativity and innovation. i'm excited when i see the young people in the tech industry all over town,n, all over r the bay area commuting g back and forth. there's an energy here. renenteria: in mission bay, everyone pretty much works in tech, working on the next start-up. woman: i have 3 cappuccinos for here. renteria: i'll do a coffee. ok. thank