- Anthropogenic CO: The Natural Carbon Cycle Reclaims Center Stage
 - Part of the U.S. National Report to International Union of Geodesy and Geophysics 1991-1994. - BOREAS Project, The
![[new]](http://eur.i1.yimg.com/eur.yimg.com/i/uk/g/new2.gif) - Learn about the Boreal Ecosystem-Atmosphere Study (BOREAS), a large-scale experiment designed to improve our understanding of the boreal forests -- how they interact with the atmosphere, how much CO2 they can store, and how climate change will affect them. - Carbon Cycle - Encyclopedia of Earth
- Describes how carbon is stored on our planet: as organic molecules in the biosphere; as the gas carbon dioxide in the atmosphere; as organic matter in soils; in the lithosphere as fossil fuels and sedimentary rock deposits; and in the oceans as dissolved atmospheric carbon dioxide and as calcium carbonate shells.
- Carbon Cycle - Exploring the Environment
- Traces the movement of carbon, in its many forms, between the biosphere, atmosphere, oceans, and geosphere.
- Carbon Cycle - Wikipedia
- Article about the carbon cycle, the biogeochemical cycle by which carbon is exchanged between the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere of the Earth.
- Carbon Cycle, Climate, and the Long-Term Effects of Fossil Fuel Burning
- Consequences article.
- Carbon Cycle, The
- From the online text Fundamentals of Physical Geography.
- Carbon Cycle: What Goes Around Comes Around
- Article about the carbon cycle. The movement of carbon, in its many forms, between the atmosphere, oceans, biosphere, and geosphere is described by the carbon cycle.
- Chemical Carousel: A Trip Around the Carbon Cycle
- Educational site designed to illustrate the nature of the carbon cycle.
- Global Carbon Cycle - NOAA Office of Global Programs
- Programme seeking to improve our ability to predict the fate of anthropogenic carbon dioxide (CO2) and future atmospheric CO2 concentrations using a combination of atmospheric and oceanic global observations, process-oriented field studies, and modelling.
- Hiilen Kierto - The Carbon Cycle - Kolets Kretslopp - Der Kreislauf des Kohlenstoffs
- Illustrates the occurrence of carbon in the natural world and the human impact on the carbon cycle.
- Mystery of the Missing Carbon
- Earth Observatory study looking for where the "missing" 1 to 2 billion metric tons of global carbon are being absorbed.
- Ocean Carbon-Cycle Model Intercomparison Project (OCMIP)
- Working to identify and understand differences between existing 3D global ocean carbon-cycle models and speed their development.
- Ocean's Carbon Balance, The
- Earth Observatory article examining the question: Is the ocean carbon cycle changing yet?
- The Carbon Cycle - Earth Observatory
- Find out how carbon cycles through the land, ocean, atmosphere, and the Earth's interior in a major biogeochemical cycle (the circulation of chemical components through the biosphere from or to the lithosphere, atmosphere, and hydrosphere).
- U.S. Carbon Cycle Science Program (CCSP)
- Investigates the rising atmospheric carbon dioxide concentration and its potential impact on future climate.
- Understanding the Global Carbon Cycle - The Woods Hole Research Center
- Learn about the global carbon cycle and how it involves the Earth's atmosphere, fossil fuels, the oceans, and the vegetation and soils of the Earth's terrestrial ecosystems.
- USGS Carbon Cycle Research
- Provides USGS project summaries and reports that support the U.S. Carbon Cycle Science Programme (CCSP).
- What is the Carbon Cycle?
- Describes the pathway that carbon takes as it is transferred from plant to animal to atmosphere to ocean and so on.
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