Ziska & George (2004)
Also: Ziska & George 2004
Rising Carbon Dioxide and Invasive, Noxious Plants: Potential Threats and Consequences
Ziska, L. H., & George, K. A. T. E. (2004). Rising carbon dioxide and invasive, noxious plants: potential threats and consequences. World Resource Review, 16(4), 427-447. Link to paper
References
All IPCC definitions taken from Climate Change 2007: The Physical Science Basis. Working Group I Contribution to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change, Annex I, Glossary, pp. 941-954. Cambridge University Press.