All IPCC definitions taken from Climate Change 2007: The Physical Science Basis. Models are unreliable "[Models] are full of fudge factors that are fitted to the existing climate, so the models more or less agree with the observed data.
Working Group I Contribution to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change, Annex I, Glossary, pp. But there is no reason to believe that the same fudge factors would give the right behaviour in a world with different chemistry, for example in a world with increased CO2 in the atmosphere." (Freeman Dyson)Climate models are mathematical representations of the interactions between the atmosphere, oceans, land surface, ice – and the sun.
CO does explain that rise, and explains it completely without any need for additional, as yet unknown forcings.
This is clearly a very complex task, so models are built to estimate are weather, averaged out over time - usually 30 years.
Trends are important because they eliminate - or "smooth out" - single events that may be extreme, but quite rare.
If a model can correctly predict trends from a starting point somewhere in the past, we could expect it to predict with reasonable certainty what might happen in the future.
So all models are first tested in a process called .
A brief survey of the literature concerning volcanogenic carbon dioxide emission finds that estimates of subaerial emission totals fail to account for the diversity of volcanic emissions and are unprepared for individual outliers that dominate known volcanic emissions.
Deepening the apparent mystery of total volcanogenic CO emission and fossil fuel consumption that are, to date, unquantified.
Furthermore, the discovery of a surprising number of submarine volcanoes highlights the underestimation of global volcanism and provides a loose basis for an estimate that may partly explain ocean acidification and rising atmospheric carbon dioxide levels observed last century, as well as shedding much needed light on intensified polar spring melts.
Based on this brief literature survey, we may conclude that volcanic CO is exclusively anthropogenic.
This list of climate scientists contains famous or otherwise notable persons who have contributed to the study of climate science.
The list is compiled manually so will not be complete or up to date.
See also Category: Climatologists and List of authors of Climate Change 2007: The Physical Science Basis.