The dossier information was complemented with remarks and opinions of several specialists, among them David Carlton, american climatologist, Johannes Huber, executive secretary of the Secretariat of the Antarctic Treaty and Viviana Alder, argentine…
This Summary for Policymakers was formally approved at the 10th Session of Working Group I of the IPCC, Paris, February 2007. Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change.