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  How Much Does the U.S. Give Sub-Saharan Africa for Development Aid?
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  Scientists Reconstruct the History of Drought for North America
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  Currents Connecting Pacific and Indian Oceans Are Colder and Deeper Than Expected
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  Explore the Route to pre-Neanderthal Days Buried in Antartica's Lake Vostok
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  Carbon Capture, Sequestration and Reuse: The Basics
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  Tree Rings, Climate Change and the Rainy Season

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