Addresses claims that the Earth's climate is changing, looking at variations in weather patterns, investigating what is known about global warming, and discussing the relationship between global warming and increases in the burning of fossil fuels since the mid-nineteenth century.
Frontline chronicles the AIDS pandemic, featuring interviews with researchers, activists, and patients, that discuss the disease's spread, treatment, prevention, and impact.
Explains technologies that help predict seismic events and limit the damage they cause. With the help of high-end modeling programs and increasingly sophisticated sensors and detection devices like interferometric radar, scientists are gaining a better understanding of earthquake triggers and consequences, while engineers have been able to vastly improve the ability of structures to withstand the stresses they endure. Also explores the history of seismic technologies and analyzes historical disasters.
