Public Broadcasting Service (U.S.)
Series
Language
English
Description
NOVA's expert team looks for the signature of a volcanic eruption big enough to have blasted a huge cloud of ash and sulfuric acid into the atmosphere. Killer Volcanoes spotlights the search for the mystery volcano that plunged the globe into a deep freeze and inflicted famine on medieval Europe.
Series
Language
English
Description
As global temperatures continue to rise, scientists are wondering if there are solutions beyond reducing emissions. Enter geoengineering. From sucking carbon straight out of the air to physically blocking out sunlight, the options may seem far-fetched. Can geoengineering really work? How much would it cost? And what are the risks of engineering Earth's climate?
Series
Language
English
Description
In this special report, NOVA investigates the water disaster in Flint and unravels a disturbing truth about the vulnerabilities of water systems across the country. Discover the delicate intricacies of water chemistry, the biology of lead poisoning, and the engineering challenge of replacing this ravaged infrastructure.
Series
Language
English
Description
On the picturesque bluffs of Martha's Vineyard, disaster looms. The historic Gay Head Lighthouse, weighing more than 400 tons and soaring 175 feet above the sea, is precipitously close to toppling into the ocean. As a team of engineers attempts to move the iconic red brick structure inland to safety, discover the geology they encounter, the archaeology they discover, and technology they employ in this lighthouse rescue.