What are Volcanic Hazards? part of Videos:Video Gallery
In this video we will describe the most common types of volcanic hazards associated with a volcanic eruption. We begin by considering the threat of an eruption from a Cascade Range volcano for citizens of Portland and Seattle. These are examples of composite volcanoes. Eruptions of these types of volcanoes produce tephra, lahars, pyroclastic flows and lava. Tephra represents the debris blasted into the air and can range in size from tiny glass shards to large blocks blasted out of the volcanic cone. When tephra combines with water it forms lahars that can transport all sizes of debris. Fast moving, toxic pyroclastic flows are among the most dangerous volcanic hazards. Lava plays a relatively modest role in eruptions of composite volcanoes but is a common product of shield volcanoes such as those in Hawaii.

Transform Plate Boundaries part of Videos:Video Gallery
This video discusses the characteristics of transform plate boundaries where plates slide past each other. We examine four examples of transform boundaries between plates and describe how and why short transform segments offset the oceanic ridge system throughout the world's oceans. We take a closer look at the major transform boundary in North America, the San Andreas fault system and examine what the plate boundary looks like in the Californian desert and what might happen if it were to slip like it has done in the historical past. Finally, we give you an opportunity to see if you can identify the location of a transform boundary where it cuts across part of New Zealand.

How Different Generations Talk About Climate Change part of CLEAN Collection

This video explores questions such as: What's changed since the early days of the environmental movement? How are the stakes different today? What's the best way to speak up about climate ...

NASA eClips: Our World: ICESat-2 Measures Ice Sheets part of CLEAN Collection

A short video on the satellite ICESat-2 and what it measures (ice).

The Social Cost of Carbon part of CLEAN Collection

With the help of two climate experts, this video discusses how the social cost of carbon is calculated, how it should (perhaps) be calculated, and why the effort to quantify this value is necessary ...

Renewable Energy 101 part of CLEAN Collection

This is a National Geographic video that defines renewable energy and discusses the benefits and drawbacks of different examples.

El Niño 101 part of CLEAN Collection

This video explains what El Niño is and provides the definition of El Niño. It goes into detail about the devastating terrestrial and aquatic effects El Niño can have on living organisms and the ...

Flow: Currents and Climate part of CLEAN Collection

This video introduces viewers to oceanic thermohaline circulation - the system of global ocean currents that cycle warm and cold water across the planet.

TU Delft - OTEC part of CLEAN Collection

This video presents a brief introduction to an alternative energy source - ocean thermal energy conversion (OTEC).

Fostering Dialogue to Support Community Resilience part of CLEAN Collection

This video outlines background information about and goals of resilience with a focus on communities and climate resilience.