Climate Change


Conversions useful in climate change research

Global warming potential (GWP)

Carbon dioxide (CO2) 1
Methane (CH4) 25
Nitrous oxide (N2O) 298

Source: Forster, P., V. Ramaswamy, P. Artaxo, T. Berntsen, R. Betts, D.W. Fahey, J. Haywood, J. Lean, D.C. Lowe, G. Myhre, J. Nganga, R. Prinn, G. Raga, M. Schulz and R. Van Dorland, 2007: Changes in Atmospheric Constituents and in Radiative Forcing. In: Climate Change 2007: The Physical Science Basis. Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change [Solomon, S., D. Qin, M. Manning, Z. Chen, M. Marquis, K.B. Averyt, M.Tignor and H.L. Miller (eds.)]. Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA.

Carbon in CO2 - The carbon in 3.67 kg of CO2 has a mass of 1 kg.

1.0 gigajoule (GJ) = 109 joules = 0.948 million Btu = 239 million calories = 278 kWh

1.0 Quad = One quadrillion Btu (1015 Btu) = 1.055 exajoules (EJ), or approximately 172 million barrels of oil equivalent (boe)

1.0 kilowatt-hour (kWh) = 3.6 MJ = 3413 Btu

Carbon Dioxide Information Analysis Center - Conversion Tables