This Science Screen Report looks at the causes of climatic conditions and their influence on human activity. Outlining principles of topography and atmospheric pressure, the program identifies specific types of weather and how they form global patterns—sometimes with damaging and deadly results. The role of ocean currents, and their relation to massive storm systems such as hurricanes and El Niño, is made clear. This program is a valuable source of information on meteorological studies, including the use of satellite technology. A viewable/printable instructor’s guide is available online. Produced in association with the Accreditation Board for Engineering and Technology and the Junior Engineering Technical Society. (14 minutes)