There?s a lot of greening going on in Greensburg?there are green new building techniques, a brand new green attitude, and the use of renewable energy sources. So what are renewable energy sources? It's pretty self explanatory, really?they're ways of generating power that don?t usurp the earth?s resources and instead draw from sources that can be replenished and reused. These are some of the best renewable energy sources being used today:
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In 2008, a food crisis left many people worldwide with empty stomachs. Most places have rebounded since then but, according to the U.N.’s World Food Programme, one out of every eight people is undernourished. Are we all eventually headed toward famine?
Technology has brought us an unprecedented ability to maximize crop yields, even in drier climates. But we can take too much from the land. What's the worst that could happen?