• Researchers set out ''leaf packs'' to attract insects.

    Measuring Impact of Amazon Highway

    Scientists Deploy "Leaf Packs" to Survey Threatened Water Quality

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Meet Sandra Postel, founder of the Global Water Policy Project and National Geographic's Freshwater Fellow. Ms. Postel is recognized as one of the world's most respected authorities on freshwater issues and is hailed for her "inspiring, innovative, and practical approach" to promoting the preservation and sustainable use of Earth’s freshwater.

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