The Carbon Cycle By: Matt Waldman. Carbon  4 th most abundant element  “Building Block” of life.  Is the anchor of all organic substances  Found in.

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Presentation transcript:

The Carbon Cycle By: Matt Waldman

Carbon  4 th most abundant element  “Building Block” of life.  Is the anchor of all organic substances  Found in all living things, atmosphere, and sediment on the ocean floor.

The Carbon Cycle

The Carbon Cycle

categories  Geological- large time scale carbon cycle. (millions of years)  Biological/physical- shorter time scale carbon cycle. (days to thousands of years)

Geological Carbon Cycle  Through a process called weathering, carbonic acid has slowly combined with magnesium and calcium to create insoluble carbonates.  The cycle continues by drawing the carbonates into the mantle by subduction.  The carbon is returned to the atmosphere through volcanic eruption

Photosynthesis  Plants absorb carbon out of the atmosphere. Create Carbohydrates.  Animals burn these “carbs” through respiration.  Respiration turns them back into CO2 which is released back into the atmosphere.  This cycle is 1,000 time more effective than the Geological.

Cycle Amounts

Carbon Amounts  Carbon=.04% of atmosphere  1,900 gigatons of Carbon in Biosphere.  36,000 gigatons of Carbon in the ocean.  60,000,000 gigatons of Carbon in sedimentary rock  4,000 gigatons of Carbon in fossil fuel deposits

Fire  Eats away at biomass and vegetation to produce CO2 into the atmosphere.  The biomass that the fire burned is killed and eventually decomposes creating more CO2.

Human Role  Fossil Fuel Burning and Deforestation.  When we burn fossil fuels, we move carbon more rapidly than the natural cycle allows for. Carbon concentrations increase.  Deforestation is taking the carbon from living plants and trees and sending it back into the atmosphere

Human Role  “The result is that humans are adding ever-increasing amounts of extra carbon dioxide into the atmosphere. Because of this, atmospheric carbon dioxide concentrations are higher today than they have been over the last half-million years or longer.” (NASA)

Human Role  “In the 1990’s, deforestation and other changes in land use caused 1-2 petagrams (1-2 billion metric tons) of carbon to flow from the biota to the atmosphere annually.” (Encyclopedia of the Earth) changes in land usechanges in land use  Equilibrium between carbon in the atmosphere has been disrupted by fossil fuels burning. (2 petagrams greater from atmosphere to ocean)

Works Cited  “The Carbon Cycle” NASA. Earth Observatory. Nov. 16,  Pidwirny, M. (2006). "The Carbon Cycle". Fundamentals of Physical Geography, 2nd Edition. Date Viewed.  Pidwirny, Michael (Lead Author); Jay Gulledge (Topic Editor) "Carbon cycle." In: Encyclopedia of Earth. Eds. Cutler J. Cleveland (Washington, D.C.: Environmental Information Coalition, National Council for Science and the Environment). Dec. 12, 2006  Pidwirny, Michael (Lead Author); Jay Gulledge (Topic Editor) "Carbon cycle." In: Encyclopedia of Earth. Eds. Cutler J. Cleveland (Washington, D.C.: Environmental Information Coalition, National Council for Science and the Environment). Dec. 12,  Stern, Paul C. “Human Interaction with the Carbon Cycle.” National Research Council. Nov. 5,