See Debatepedia's Global Climate Change Debate Series with the UN Foundation's The People Speak. Press release.
Contributory causal argument
From Debatepedia
According to Discovering the World through Debate, contributory causal argument "an argument that states that the purported cuase is one of several contributors to the effect" (247).
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]"Works Cited"
Trapp, Robert, et al. Discovering the World through Debate: A Practical Guide to Educational Debate for Debaters, Coaches, and Judges. Third Edition. New York: IDEA Press Books, 2005.