The climate science community sources a suite of global climate models to help decision makers understand the projections of future climate change and related impacts, among the most widely used are the Coupled Model Intercomparison Project, Phase 5 (CMIP5) models included in the IPCC's Fifth Assessment Report (AR5). Climate projections can be presented via individual models or through multi-model ensembles. The Climate Change Knowledge Portal (CCKP) supports the analysis of climate impacts using multi-model ensembles, as they represent the range and distribution of the most plausible projected outcomes when representing expected changes.
- Mean annual temperature is expected to increase by 1.1 to 3.5°C by 2060.
- The projected rate of warming is faster in the interior regions than in those closer to the coast.
- Mean annual precipitation is projected to decrease by 17% by 2050.
- Models in the ensemble are consistent in projecting seasonal decreases in annual rainfall, with the greatest decrease of 31% during June-August and the smallest during March-May by 11%.
This section provides the options to visualize climate variables and indices derived from scientifically vetted CMIP5 projections for different timeframes, statistics, emission scenarios, and climate models.