Geography4Kids.com! The web site that teaches physical geography and earth science basics to everyone!
http://www.geography4kids.com/files/cycles_carbon.html

Current information about climate and the environment. ... The Human Role In addition to the natural fluxes of carbon through the Earth system, anthropogenic (human) activities ...
http://earthobservatory.nasa.gov/Library/CarbonCycle/carbon_cycle4.html

Carbon Cycle The carbon cycle is one of the major biogeochemical cycles describing the flow of essential elements from the environent to living organisms and back to the ...
http://dilu.bol.ucla.edu/home.html

carbon cycle. n. 1. Physics See carbon-nitrogen cycle. 2. Ecology The combined processes, including photosynthesis, decomposition, and respiration, by which carbon as a component ...
http://www.thefreedictionary.com/carbon+cycle

USGS Contributions to the Climate Change Science Program CARBON CYCLE. From studies of the geologic record, it is known that the distribution of carbon among major carbon sinks and ...
http://geochange.er.usgs.gov/poster/carboncycle.html

The NOAA Earth System Research Laboratory was formed to observe and understand the Earth system and to develop products, through a commitment to research that will advance the ...
http://www.esrl.noaa.gov/gmd/ccgg

The Carbon Cycle: The carbon cycle describes the exchange of carbon atoms between various reservoirs within the earth system. The carbon cycle is one of a number of geochemical ...
http://www.atmos.washington.edu/2002Q4/211/notes_carboncycle.html

All life is based on the element carbon . Carbon is the major chemical constituent of most organic matter, from fossil fuels to the complex molecules (DNA and RNA) that control ...
http://www.eoearth.org/article/Carbon_cycle

carbon cycle, in biology, the exchange of carbon between living organisms and the nonliving environment. Inorganic carbon dioxide in the atmosphere is converted by plants into ...
http://encyclopedia2.thefreedictionary.com/carbon+cycle

What is the Carbon Cycle? Modified with permission from Global Climates - Past, Present, and Future, S. Henderson, S. Holman, and L. Mortensen (Eds.). EPA Report No.
http://www.ucar.edu/learn/1_4_2_15t.htm

NOAA programs conduct research on complex climate systems to improve predictions of climate variation in both the shorter term, like cold spells or periods of drought, and over ...
http://www.research.noaa.gov/climate/t_carboncycle.html

If you look back at the carbon cycle, you will see that we have also described the oxygen cycle, since these atoms often are combined. Oxygen is present in the carbon dioxide, in ...
http://www.marietta.edu/~biol/102/ecosystem.html

Modeling the Carbon Cycle . Strategy -- Divide and Conquer A Simple Terrestrial Carbon Cycle Model Construction Equations Terrestrial Carbon Cycle Experiments
http://www.carleton.edu/departments/geol/DaveSTELLA/Carbon/c_cycle_models.htm

The carbon cycle of the Earth is examined including the unbalanced distribution of CO2 and other greenhouse gases that cause global warming.
http://www.carboncycle.biz/

The Carbon Cycle: This module provides an overview of the biogeochemical carbon cycle. Major sources and sinks of carbon are discussed as well as the impact of human activities on ...
http://www.visionlearning.com/library/module_viewer.php?c3=1&mid=95&l=

Skee Houghton, Senior Scientist at the Woods Hole Research Center describes the importance of carbon to the function of natural systems.
http://www.whrc.org/carbon/

We will also need an early warning system for potentially large, but hard to predict, changes in the carbon cycle, such as massive emissions of CO2 from frozen carbon compounds ...
http://www.esrl.noaa.gov/research/themes/carbon/

An interagency partnership to provide critical unbiased scientific information on the fate of carbon dioxide in the environment to contribute to the ongoing public dialogue.
http://www.carboncyclescience.gov/

Carbon Cycle Research ... Carbon Cycle Research. Global warming, or human-induced climate change, is one of the most prominent environmental issues of our time.
http://edcintl.cr.usgs.gov/carbon_cycle

Detailed diagram and a look at how the cycle impacts global warming and the greenhouse effect.
http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/C/CarbonCycle.html

Carbon Cycle Processes (relevant for timescales of a few hundred years) Processes of Flow in the Terrestrial Realm Photosynthesis Plant Respiration
http://www.carleton.edu/departments/geol/DaveSTELLA/Carbon/c_cycle_processes.htm

The earthly matter cycle of carbon and carbon dioxide ... Carbon is a very important element, as it makes up organic matter, which is a part of all life.
http://www.lenntech.com/carbon-cycle.htm

Current information about climate and the environment. ... Carbon (C), the fourth most abundant element in the Universe, after hydrogen (H), helium (He), and oxygen (O), is the ...
http://earthobservatory.nasa.gov/Library/CarbonCycle/

Carbon Cycle - Photosynthesis: Photosynthesis is a complex series of reactions carried out by algae, phytoplankton, and the leaves in plants, which utilize ...
http://www.elmhurst.edu/%7Echm/vchembook/306carbon.html

carbon cycle n. Physics. See carbon-nitrogen cycle . Ecology. The combined processes, including photosynthesis, decomposition, and respiration, by
http://www.answers.com/topic/carbon-cycle

Tim Appenzeller Peter Essick fossil fuels carbon dioxide trees inhale coal oil natural gas plants trees forest ecosystems concrete cement emissions Harvard Forest recycling steel ...
http://ngm.nationalgeographic.com/ngm/0402/feature5/index.html

Carbon, as carbon dioxide (CO2), is liberated from flaming logs to enter the atmosphere and help keep the carbon cycle spinning. Trees, crops, phytoplankton all absorb CO2 to grow.
http://ngm.nationalgeographic.com/ngm/0402/feature5/online_extra.html

Diagrams and an explanation of the carbon cycle, including how humans are impacting the balance.
http://www.cotf.edu/ete/modules/carbon/efcarbon.html