South Africa still struggles to ensure that all citizens enjoy modern energy services, just one example of how the U.N.'s International Year of Sustainable Energy for All aims to bring modern energy resources to the billions who lack it
Can humans grow enough food, produce enough energy and still preserve some of the last refuges of other species--both plant and animal--on the planet?
By altering how plants turn sunlight into chemical energy, scientists hope to produce biofuels that make economic sense
The man who first sequenced the human genome and designed the first synthetic cell explains why simple algae—and some genetic engineering—may hold the key to our future
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Changes in agriculture, policy and personal behaviors can reduce the energy a nation uses to feed itself and the greenhouse gases it emits
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