The challenge of global warming has captured the attention of politicians around the world. The following article is part of a series leading up to the December U.N. conference in Copenhagen on how ordinary people in different countries view the issue:

When he first got sick, Samson Banda didn't realize he had malaria. Only after he came down with a serious fever did he end up at a clinic in the Bauleni slum compound in Lusaka, Zambia. The clinic has just a few nurses and staff with basic medical skills....