Multimedia

This video focuses on the conifer forest in Alaska to explore the carbon cycle and how the forest responds to rising atmospheric carbon dioxide. Topics addressed in the video include wildfires, reflectivity, and the role of permafrost in the global carbon cycle.

This introductory video covers the basic facts about how to keep residential and commercial roofs cool and why it is important to reducing the heat island effect and conserving energy.

This video provides a simple introduction to wind turbines and how they generate electricity.

This introductory video describes the basic principles of residential geothermal heat pumps.

A short video on the causes of ocean acidification and its effects on marine ecosystems.

This video follows biologist Gretchen Hofmann as she studies the effects of ocean acidification on sea urchin larvae.

This video montage of spectacular NASA satellite images set to music shows different types of ice and ice features as well as descriptions of satellite-based measurements of ice cover. Text captioning describes how global ice cover is changing, and how this is measured.

This video describes how concentrating solar power (CSP) technologies reflect and collect solar energy to generate electricity. This video explains what CSP is, how it works, and focuses on parabolic troughs.

This key figure is on page 11 of the PDF found at the link above (it is listed as page 3 in the document). The link is to the 2007 Intergovernmental Panel on Climate Change (IPCC) synthesis report. This image shows changes in global average surface temperature, global average sea level, and Northern Hemisphere snow cover from as far back as 1850.

This NASA animation on land cover change zooms into Rondonia, Brazil. It starts with a Landsat satellite image taken in 1975 and dissolves into a second image of the same region taken in 2009 that illustrates a significant amount of land use change.