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Tree Art

Nature Art

Planet Art

Map Art

acrylic prints tree acrylic prints nature acrylic prints planet acrylic prints map acrylic prints earth acrylic prints geography acrylic prints physical geography acrylic prints earth science acrylic prints biology acrylic prints botany acrylic prints ecology acrylic prints satellite acrylic prints aqua acrylic prints 21st century acrylic prints black background acrylic prints

photographs tree photos nature photos planet photos map photos earth photos geography photos physical geography photos earth science photos biology photos botany photos ecology photos satellite photos aqua photos 21st century photos black background photos

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Global productivity levels. Map based on satellite data showing the Earth's net primary productivity in terms of its carbon metabolism, measured in kilograms of carbon fixed via photosynthesis per square kilometre per year. The colour-coding shows this rate varying from close to zero (black-purple) through 1 and 2 (blue-green-yellow) to 3 (red). Tropical rainforests are generally the most productive places on Earth, though ongoing productivity at the surface of the world's oceans, over such a widespread area, makes them roughly as productive as the land. The data (obtained by the MODIS sensors on the Terra and Aqua satellites) is for the years 2001 and 2002.

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