After months of preparation, the Sanitation Hackathon weekend is upon us.In dozens of countries around the world, IT and sanitation experts will join forces for an intensive brainstorming and…

Sanitation Hackathon Team |

Only a very short time ago, we were drawing blank looks when we mentioned "natural capital accounting." This week at Rio, everyone is talking about it. Walls are plastered with flyers…

Rachel Kyte |