This page contains a Flash digital edition of a book.
T.H. Culhane talks with a young man about clean energy.


now and time to cook dinner. There’s no electricity here, so to cook your meal, you’ll need to make a fire. You carry in some of the firewood and build a small fire on the floor of your hut. The wood begins to smolder and turn bright red and ashy. Tiny particles from the burning wood float through the air. Invisible gases from the fire surround you. You breathe them in. Wood fires aren’t good for the environment, and they aren’t good for you. But you aren’t alone. More than 2 billion people cook


Y


over wood fires every day. They do this because they don’t have another energy source to rely on. What does the rest of the world use? Much of the


energy the rest of the world uses comes from fossil fuels—oil, coal, and natural gas. Power plants burn these energy sources to produce electricity. Then, a giant network, or grid, of wires carries electricty to those who need it. A network of pipes carries natural gas to those who need it, too. Yet not everyone is connected to this grid. And these


energy sources aren’t perfect. There’s a limited amount of fossil fuels. Burning these resources also causes pollution. So some scientists are looking for a better way. Thomas “T.H.” Culhane is one such person. He’s an urban planner who helps people worldwide find ways to use clean and safe forms of energy.


17


ou live in a small, remote village in Africa. It’s evening


Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24