© Gerardo Segura Warnholtz  In Science magazine, earlier this year, researchers revealed that ancient forest peoples of the Amazon helped create much of the imposing forest landscape that the…

Gerardo Segura Warnholtz |

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 |