Winners include an examination of height manipulation in children; entries on drug resistance and water pollution, and the story of how cattle grazing aids an endangered butterfly.

Winning entries explore genetic screening, assisted reproduction, and a pioneering African-American chemist.

Winners include a history of in vitro fertilization that draws parallels with current controversies over human cloning and stem-cell research; a documentary on how the melting of the Arctic is affecting travel, business opportunities, and international diplomacy; an analysis of the danger of an avian influenza pandemic, drawing on the lessons of the devastating 1918 flu epidemic; and a vivid account of the effect of climate change on the Colorado Rockies.

Controversial biomedical subjects — cloning, stem cells, abortion, a breast-cancer study that went awry — are among the winning entries in the 2003 Science in Society Awards.