Thecarbon cycleis a fundamental component of the biogeochemical dynamics of Earth. Carbon is exchanged and cycled between atmosphere, ocean layers, land and lithosphere through processes such as photosynthesis, decomposition, respiration, and mineralization. In the atmosphere, carbon exists in the form ...
CO2is a significant greenhouse gas, with a long atmospheric lifetime, of approximately 100–200 years. No specific lifetime for carbon dioxide can be determined because it is continuously cycled between the atmosphere, oceans and land biosphere and its net removal from the atmosphere involves a ra...
Geologic Sequestration Geologic sequestration of CO 2 through well injection. – Problem of well contamination – Water sources could be contaminated as a result – Enhanced oil recovery: pumping CO2 into the reservoir “pushes” the oil out – U.S is the leader: 32 million tons/year of CO2 ...
of Pharmaceutical Sciences, University of Maryland School of Pharmacy, Baltimore, MD, USA and 5Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, FL, USA Bacteria and archaea in the dark ocean (4200 m) comprise 0.3–1.3 billion tons of actively cycled marine carbon...
So while individual molecule might be cycled, the increase in atmospheric concentration remains. Certainly the atmospheric concentration appears to be affected by emissions older than 30 years: http://www.esrl.noaa.gov/gmd/webdata/ccgg/trends/co2_data_mlo.png 0 gymnosperm Reply...
(Sayer et al., 2012) not only because it contains all the elements required for plant growth, but also because those nutrients are cycled with substantial amounts of C (c. 50% leaf dry mass). The stoichiometric balance of C and nutrients is critical to a large number of processes ...