>> um, i like math. >> reporter: nastaran is learning english and spanish, too ( speaking spanish ) fitting for a country that dave ali describes as a melting pot. >> i have a brother that's a doctor, a sister a psychiatrist and i'm going back to school to finish my accounting degree. we're doing our best to live the american dream, and i hope the kids will do better than us. >> reporter: natalie brand, cbs news, houston. >> o'donnell: and there's a big headline tonight from the global climate summit in scotland, more than 40 countries are planning to phase tout the use of coal power, but the u.s. is not part of that pact. one focus to have the summit has been protecting vulnerable communities from the effects of climate change. in tonight's "eye on america," cbs's ben tracy shows us how climate change is forcing a native american tribe in the pacific northwest to move to higher ground. ( singing )