The 5km (2.5-minute) downscaled datasets produced by Conservation International with the support of NCEAS can be downloaded here. Follow steps 1 through 4 to select the monthly datasets for download. A technical description of the data is available on the data description page.

The 10-minute downscaled datasets produced by the University of Wisconsin Department of Geography and Conservation International are currently available at

Emission Scenarios

The three 21st-century standard emissions scenarios available here (A2, A1B, B1) represent a range of the possible future scenarios explored by the IPCC (Nakicenovic and Swart, 2000; Meehl et al., 2007b). The B1 scenario assumes the most ecologically friendly future. The A1B scenario assumes future energy sources will be balanced between fossil-intensive and non-fossil energy sources. The A2 scenario is characterized by a future world still heavily dependent on fossil fuel consumption.


All models are historical and future climate simulations collected from leading modeling centers around the world. The original model simulations are collected and achieved by the Program for Climate Model Diagnosis and Intercomparison (PCMDI) to create the World Climate Research Programme's (WCRP's) phase 3 of the Coupled Model Intercomparison Project (CMIP3) multi-model dataset. The availability of multiple climate models is essential to assess inter-model variability and to create model ensembles to offset errors.


Available climate variables include monthly precipitation, temperature, maximum temperature, and minimum temperature. Monthly temperature projections are in degrees Celcius*10 and monthly precipitation projections are in milimeters (mm).

Time Periods

Two future time periods include 2041-2060 ("2050") and 2081-2100 ("2090") monthly climatologies. A monthly climatology is a long-term average of a given variable for each month. Our future climatologies are monthly means over 20 years.

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