Can Twitter be saved? In a wide-ranging conversation with TED's Chris Anderson and Whitney Pennington Rodgers, Twitter CEO Jack Dorsey discusses the future of the platform -- acknowledging problems with harassment and moderation and proposing some fundamental changes that he hopes will encourage healthy, respectful conversations. "Are we actually delivering something that people value every single day?" Dorsey asks.
The scientists at Drawdown has measured 100 solutions and modeled them to determine its carbon impact through the year 2050, the total and net cost to society, and the total lifetime savings (or cost).