A decade after millennials' hopes and dreams faded with the Great Recession, Generation Z is taking to the streets to proclaim climate change their era's defining issue.
Driving the news: In New York, 16-year-old Greta Thunberg confronted world leaders Monday: "I shouldn't be up here. I should be back in school on the other side of the ocean. Yet you all come to [us] for hope. How dare you. You have stolen my dreams and my childhood with your empty words."