Marine biomass

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Biomass

Primary production is the production of chemical energy in organic compounds by living organisms. The main source of this energy is sunlight but a minute fraction of primary production is driven by lithotrophic organisms using the chemical energy of inorganic molecules.

Global Carbon Cycle

"Each year, humans release more than 30-billion tons of carbon dioxide into the atmosphere through the burning of fossil fuels for powering vehicles, generating electricity and manufacturing products. Up to five-and-a-half additional gigatons of carbon dioxide are released each year by biomass burning, forest fires and land-use practices such as slash-and-burn agriculture. Between 40 and 50 percent of that amount remains in the atmosphere, according to measurements by about 100 ground-based carbon dioxide monitoring stations scattered across the globe. Another estimated 30 percent is dissolved into the ocean, the world's largest sink.But what about the rest? The math doesn't add up. For years, scientists have sought to find the answer to this mystery. Though scientists agree the remaining carbon dioxide is also "inhaled" by Earth, they have been unable to precisely determine where it is going, what processes are involved, and whether Earth will continue to absorb it in the future. A new NASA satellite scheduled to launch in February 2009 is poised to shed a very bright light on these "missing" sinks: the Orbiting Carbon Observatory"

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