Tom Schuler: How we could make carbon-negative concrete
Concrete is all around us: we use it to build our roads, buildings, bridges and much more. Yet over the last 2,000 years, the art of mixing cement and using it to bind concrete hasn't changed very much -- and it remains one of the world's biggest emitters of carbon. Entrepreneur Tom Schuler previews an innovative way to create concrete, potentia...
Tom Ziglar: The Coach Leadership Model - Attract, Develop, and Keep Top Performers