Mexico established national health weeks (NHWs) in the early 1980s to promote childhood vaccinations. Because of the cumulative worldwide peer-reviewed scientific evidence, the recommendations of the World Health Organization and other international organisations, the political will of the Mexican government…

Historical records of burning, field observations, and a manipulation experiment were used to evaluate the extent and impact of fire in a system of gallery forests in the Mountain Pine Ridge savanna, Belize. The outer boundaries of gallery forests are…