How we could make carbon-negative concrete | ...

Katie Paris quit her career in Washington, DC, to figure out how to make politics feel less like strangers shouting at each other and more like friends looking out for each other. In this practical talk, she reveals why conversations between real people can have a bigger impact o ...  Show more

Grammy-winning musician Jacob Collier has a name for the feeling that moves through a great piece of music: the wiggle. Watch him break down the idea into its three parts — melody, rhythm and harmony — with nothing but his own voice, a grand piano and Louis Armstrong’s “What a Wo ...  Show more

Concrete is the most widely used substance on earth after water. It’s quite literally the foundation of the modern world, and no wonder - it’s strong, cheap, and mouldable into nearly any shape.

But these benefits come at a cost: concrete production is responsible for ar ...

It's improved health, school attendance, agricultural productivity and farm worker wages, but concrete has a poor reputation. It takes a lot of energy to produce and releases a great deal of CO2 in the process. However, architects appreciate its versatility and there are few more ...  Show more

Concrete is so much more than just a sidewalk. We use it to build playgrounds and skateparks and even musical instruments! But how does it go from a powder to a sludge to the strong building material that we use all over the world? And can we come up with new recipes that are bet ...  Show more

Cement is one of the most-consumed materials on Earth — second only to water — and it accounts for a whopping eight percent of the world's carbon pollution. What if we could turn this climate villain into a hero? Clean tech innovator and serial entrepreneur Ryan Gilliam reveals h ...  Show more