Responding to sub-Saharan Africa's soil health crisis, the International Center for Tropical Agriculture announced today an ambitious new effort to produce the first-ever, detailed digital soil map for all 42 countries of the region. This project combines the latest soil science and technology with remote satellite imagery and on-the-ground efforts to analyze thousands of soil samples from remote areas across the continent to help provide solutions for poor farmers.

Starch grains preserved on human teeth reveal that ancient Peruvians ate a variety of cultivated crops including squash, beans, peanuts and pacay. Starch grain analysis of human dental remains should prove to be a powerful means to directly study ancient diets.

Thanks to a collaborative agreement signed between the Smithsonian Tropical Research Institute and the Organization for Unity and Development of the Community Ipeti-Embera, the Institute in Panama will offset its estimated carbon emissions for the next three years.