The history-making, ground-breaking speeches of Greta Thunberg, the young activist who has become the voice of a generation'Everything needs to change. And it has to start today'In August 2018 a fifte
THE TIPPING POINT is that magic moment when an idea, trend, or social behavior crosses a threshold, tips, and spreads like wildfire. Just as a single sick person can start an epidemic of the flu, so t
