Although hydropower has been in use for centuries, largely in the form of water wheels, hydroelectricity is a more recent phenomenon. Hydroelectricity is a type of hydropower and is created as moving water powers machines that produce electricity. Here’s an interactive explainer that shows you how it works.
During the past two weeks, students across the nation discussed whether or not the government should invest their time and money into creating the Keystone XL pipeline in our #DoNowKeystone post. We asked students, Do you think the Obama administration should approve the Keystone XL pipeline? Why or Why not? What information should be considered in making this decision?
With increasing concern about carbon dioxide emissions, climate change and American energy independence, environmentalists, politicians and the oil industry have been butting heads over the development of the proposed Keystone XL pipeline, which requires the Obama administration’s approval before construction can begin. Do you think the Obama administration should approve this effort?
Liu Cai is from China and is a native Cantonese speaker. He works in San Francisco for the Department of the Environment as part of an outreach team, Environment Now, that goes out into the community to provide information and promote sustainable waste policies, such as how to compost and recycle, use free pick up services and how to dispose of hazardous waste to improve the quality of the environment for all residents.
Humans have been using artificial light since the invention of the light bulb in the late 1800s. Artificial illumination allows us to stay active after the sun goes down. It helps us drive more safely at night. And some argue that it keeps crime-ridden areas safer. But artificial light also causes its own kind of pollution.
Michael Pollan has written “The word “sustainability” has gotten such a workout lately that the whole concept is in danger of floating away on a sea of inoffensiveness. Everybody, it seems, is for it whatever it means.” So what does sustainability mean to you – do you think of solar panels or wind power? Buying […]
To respond to the Do Now, you can comment below or tweet your response. Be sure to begin your tweet with @KQEDEdspace and end it with #DoNow43 For more info on how to use Twitter, click here. Do Now What do you think about expanding the use of nuclear energy in California? Would you support […]