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What Is Climate Change?

Science | January 21, 2015

What Is Climate Change?

There’s a lot of talk about climate change in the news, but it’s a topic that can be really hard to understand. What exactly is climate change? Click on the interactive map in this post to see major climate zones in the United States.

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How is Waste Converted Into Energy?

Science | January 14, 2015

How is Waste Converted Into Energy?

One way to generate electricity is to burn solid waste, like the material found in landfills. Instead of a traditional landfill, a community might have a waste-to-energy facility that incinerates garbage, transforming chemical energy to thermal energy.

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How Nuclear Reactors Work

Science | January 7, 2015

How Nuclear Reactors Work

Energy sources fit into three main buckets–fossil fuels (coal, oil and natural gas), renewable (e.g. wind, solar, hydroelectric, geothermal, etc.) and nuclear. Nuclear energy is a nonrenewable energy resource because it relies on Earth’s uranium deposits.

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How Solar Power Works

Science | December 30, 2014

How Solar Power Works

Solar power is energy that comes from the sun. This energy can be captured and stored in many different ways. It is the ultimate source for most energy resources.

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How Does Electricity Get to Your Home?

Science | December 23, 2014

How Does Electricity Get to Your Home?

When you flick on a light switch or plug in your computer you’re using electricity. But where does it come from and how does it reach your house?

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What is the Difference Between Power and Energy?

Science | December 17, 2014

What is the Difference Between Power and Energy?

Energy is what makes change happen and can be transferred form one object to another. Power is the rate at which energy is transferred. It is not energy but is often confused with energy.

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How is Energy Measured? [Infographic]

Science | December 10, 2014

How is Energy Measured? [Infographic]

We measure energy in many different ways and for many different purposes. Quantities of energy given in one unit can always be converted to any other unit of energy. Here’s an infographic that illustrates the various units of energy.

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Is It Ethical to Colonize Mars?

Science | December 9, 2014 | 56 Comments

Is It Ethical to Colonize Mars?

In 2024, Mars One is planning to send four individuals on an one-way trip to live on Mars. Is it ethical to colonize Mars or other planets outside of our own?

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Climate Change: Beyond the Headlines

Science | December 3, 2014

Climate Change: Beyond the Headlines

Explore California’s drought, sea level rise, renewable energy and more at the touch of your finger tip! Clue into Climate is a new e-book series about the science behind climate change with interactive animations, infographics, videos and audio reports from KQED and its partners.

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Should We Fund Space Exploration?

Science | November 25, 2014 | 18 Comments

Should We Fund Space Exploration?

Human space travel has long been a subject of fascination and scientific inquiry. Should we fund space exploration, or would the money be better spent elsewhere?

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