NASA Scientists Get Global Fix On Food, Wood & Fiber Use
This ASTER (Advanced Spaceborne Thermal Emission and Reflection Radiometer) image shows New York City and the Island of Manhattan, bordered by the Hudson and East Rivers. The study finds that people in some urban areas with very high population densities need 300 times more plant-derived resources, or net primary production (NPP), than the local area produces. (Image credit: NASA/GSFC/METI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team)
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