Google just hosted a series of super high-level talks and invited about 50 entrepreneurs, innovators, and scientists to the deluxe CordeValle resort in the mountains south of San Jose.

They were going through some pretty radical ideas. The kind of stuff that could change the world.

It was called Google's "Solve For X" conference, a series of talks where some of the smartest people in the world tried to tackle some of the world's biggest problems.

Google invited them to introduce radical ideas for solving the world's most complicated problems, like water scarcity and recycling electronics without creating hazardous waste.

So what were they talking about? We've assembled a full digest for you.