Group 4

Front 1

The Earth’s climate is dependent upon the radiative balance of the
atmosphere, which in turn depends upon the input of solar
radiation and the atmospheric abundances of radiatively active
trace gases (i.e., greenhouse gases), clouds and aerosols.
Since the industrial revolution the atmospheric concentrations
of several greenhouse gases, i.e., carbon dioxide (C02), methane
(CH4), chiorofluorocarbons (CFCs), nitrous oxide (N20), and
tropospheric ozone (03), have been increasing, primarily due to
human activities.

Back 1

Watson, R. T., H. Rodhie, H. Oeschger, and U. Siegenthaler. "Greenhouse Gases and Aerosols." Rivernet. NC State University, 1990. Web. 13 May 2010. <http://rivernet.ncsu.edu/>.Contributors: M. Andreae; R. Charison; R. Cicerone; J. Coakley; R. Derwent; J. Elkins; F. Fehsenfeld; P. Fraser,’ R. Gammon,’ H. Grassi; R. Harriss; M. Heimann; R. Houghton; V. Kirchhoff; G. Kohlmaier; S. Lal; P. Liss; J. Logan; R. Luxmoore; L. Merlivat, K. Minami; G. Pearman; S. Penkett; D. Raynaud; E. Sanhueza; P. Simon; W. Su; B. Svensson; A. Thompson; P. Vitousek; A. Watson; M. Whitfield; P. Winkler; S. Wofsy.

Front 2

Anthropogenic (from the Greek meaning manmade) effects, processes or materials are those that are derived from human activities, as opposed to those occurring in biophysical environments without human influence.

Back 2

"Anthropogenic." Wikipedia, the Free Encyclopedia. Web. 13 May 2010. <http://en.wikipedia.org/wiki/Anthropogenic>.

Front 3

The atmospheric C02 concentration, at 353 ppmv in 1990, is now
about 25% greater than the pre-industrial (1750-1800) value of
about 280 ppmv, and higher than at any time in at least the last
160,000 years. Carbon dioxide is currently rising at about 1.8
ppmv (0.5%) per year due to anthropogenic emissions.

Back 3

Watson, R. T., H. Rodhie, H. Oeschger, and U. Siegenthaler. "Greenhouse Gases and Aerosols." Rivernet. NC State University, 1990. Web. 13 May 2010. <http://rivernet.ncsu.edu/>.Contributors: M. Andreae; R. Charison; R. Cicerone; J. Coakley; R. Derwent; J. Elkins; F. Fehsenfeld; P. Fraser,’ R. Gammon,’ H. Grassi; R. Harriss; M. Heimann; R. Houghton; V. Kirchhoff; G. Kohlmaier; S. Lal; P. Liss; J. Logan; R. Luxmoore; L. Merlivat, K. Minami; G. Pearman; S. Penkett; D. Raynaud; E. Sanhueza; P. Simon; W. Su; B. Svensson; A. Thompson; P. Vitousek; A. Watson; M. Whitfield; P. Winkler; S. Wofsy.

Front 4

GtC - Gigaton of Carbon

Back 4

"GTC." Wikipedia, the Free Encyclopedia. Web. 14 May 2010. <http://en.wikipedia.org/wiki/GTC>.

Front 5

primary greenhouse gases -
carbon dioxide
methane
chloroflourocarbons
nitrous oxide
tropospheric ozone

Back 5

Watson, R. T., H. Rodhie, H. Oeschger, and U. Siegenthaler. "Greenhouse Gases and Aerosols." Rivernet. NC State University, 1990. Web. 13 May 2010. <http://rivernet.ncsu.edu/>.Contributors: M. Andreae; R. Charison; R. Cicerone; J. Coakley; R. Derwent; J. Elkins; F. Fehsenfeld; P. Fraser,’ R. Gammon,’ H. Grassi; R. Harriss; M. Heimann; R. Houghton; V. Kirchhoff; G. Kohlmaier; S. Lal; P. Liss; J. Logan; R. Luxmoore; L. Merlivat, K. Minami; G. Pearman; S. Penkett; D. Raynaud; E. Sanhueza; P. Simon; W. Su; B. Svensson; A. Thompson; P. Vitousek; A. Watson; M. Whitfield; P. Winkler; S. Wofsy.

Front 6

A carbon sink is a natural or artificial reservoir that accumulates and stores some carbon-containing chemical compound for an indefinite period.

The main natural sinks are:

Absorption of carbon dioxide by the oceans
Photosynthesis by plants and algae
Natural sinks dwarf manmade sinks. The main manmade sinks are:

Landfills
Carbon capture and storage proposals

Back 6

Preta, Terra. "Carbon Sink." Wikipedia, the Free Encyclopedia. Web. 15 May 2010. <http://en.wikipedia.org/wiki/Carbon_dioxide_sink>.

Front 7

check epa greenhouse gases executive report for data
table es-3

Back 7

2010 U.S. Greenhouse Gas Inventory Report. Tech. no. U.S. EPA # 430-R-10-006. EPA, 15 Apr. 2010. Web. <http://www.epa.gov/climatechange/emissions/usinventoryreport.html>.