Toilets and the Smart Grid

By comparing the cost of the 19th Century revolution in sanitation to the future cost of a clean energy system, Richard Alley says we can afford to make the change.

This lists the logos of programs or partners of NG Education which have provided or contributed the content on this page. Content Created by

Overview

By comparing the cost of the 19th Century revolution in sanitation to the future cost of a clean energy system, Richard Alley says we can afford to make the change.

Classroom educators and outreach professionals can register to download HD segments for free by visiting the Educators section of the Earth: The Operators' Manual website.

Credits

Media Credits

The audio, illustrations, photos, and videos are credited beneath the media asset, except for promotional images, which generally link to another page that contains the media credit. The Rights Holder for media is the person or group credited.

Courtesy

"Earth: The Operators' Manual"/P2K/NSF

Last Updated

Nov. 19, 2013

User Permissions

For information on user permissions, please read our Terms of Service. If you have questions about licensing content on this page, please contact natgeocreative@natgeo.com for more information and to obtain a license. If you have questions about how to cite anything on our website in your project or classroom presentation, please visit our FAQ page.

Media

Some media assets (videos, photos, audio recordings and PDFs) can be downloaded and used outside the National Geographic website according to the Terms of Service. If a media asset is downloadable, a download button appears in the lower right hand corner () of the media viewer. If no button appears, you cannot download or save the media.