China is the world's fastest-growing and second-largest economy, but it's the country's poverty that keeps Scott Rozelle coming back. As co-director of Stanford's Rural Education Action Project (REAP), Rozelle is looking for ways to give those struggling in the country's most remote areas the chance to make a living in the booming cities. 

Rozelle is the Helen C. Farnsworth Professor in International Agricultural Policy and senior fellow at the Woods Institute for the Environment. In June 2011, he and several Stanford colleagues received a Woods Institute Environmental Venture Project grant to develop land-use policies that minimize food contamination from coal emissions in China. 

REAP is one of many programs that has benefited over the last four years from The Stanford Challenge, a fundraising campaign dedicated to supporting people and programs seeking solutions to global problems. 

For the past three summers, Rozelle has led what he calls a "mobile board meeting" of REAP's researchers, collaborators and donors who get a chance to review some of the group's projects and think up new ones. In 2011, the entourage focused on REAP's work to eradicate childhood anemia and intestinal worms, and introduce computer-assisted learning in schools. 

The field trip covers some of the country's poorest areas in the Guizhou, Gansu and Ningxia provinces. Adam Gorlick of the Stanford News Service traveled with the group and wrote a seven-part series on their experiences: 

-  Part 1: Taking first steps toward fighting a pervasive parasite

-  Part 2: Tackling a malady rooted in extreme poverty

-  Part 3: To a barren plateau to address children's anemia

-  Part 4: Solving the anemia problem: Is one egg enough?

-  Part 5: Thin soup, mattresses of wood and a chance of ghosts

-  Part 6: Finding the right mix of information and money to yield result

-  Part 7: Computers help boost migrant children's grades