Our planet is in crisis. When it comes to water, there are many promising solutions. But in a world full of new technologies, what innovations should we pay attention to? And will they be enough?

On Season 4 of What About Water? we're diving into New Technologies, Water Realities. Host Jay Famiglietti will sit down with the experts, innovators and big-picture thinkers who are helping preserve and protect our freshwater.

Each new episode, we'll look at how human-made solutions can both help and hurt us as we tackle our biggest water challenges. And we'll explore everything from ideas found in nature to digital media, data and shiny new tech.