Inverse method for attribution of climate change

Methods for climate change detection and attribution

Detection and attribution (D&A) have played a central role within the assessment of the human influence on climate and within IPCC’s reports. Detection involves the statistical demonstration that a change has happened within climatic observations. Attribution consists in assessing the respective contributions of one or several causes to some observed change. Both require the use of climate mode...

Detection of Climate Change and Attribution of Causes

Attribution of Climate Change in the Presence of Internal Variability

Spontaneous, internally-generated variability of the climate system is pervasive. On the multidecadal time scale it dominates the variability of surface air temperature averaged over extratropical land areas as large as the contiguous United States, and it modulates the rate of rise of global mean temperature in response to the buildup of greenhouse gases. Unforced variability is one of the fac...

Quantifying Uncertainty in the Attribution of Recent Climate Change (quarcc)

One of the objectives of the QUARCC project is to investigate the robustness of recent reports of an anthropogenic innuence on global climate through the application of a consistent optimal detection and attribution methodology to a wider range of alternative climate change mechanisms and a wider range of model predictions and observational data sources than have been addressed to date. The act...

Detection and attribution of climate change: a regional perspective

The Intergovernmental Panel on Climate Change fourth assessment report, published in 2007 came to a more confident assessment of the causes of global temperature change than previous reports and concluded that ‘it is likely that there has been significant anthropogenic warming over the past 50 years averaged over each continent except Antarctica.’ Since then, warming over Antarctica has also be...