• Computer-modelled climate projections are the best information we have available on our future climate. They help government, industry and communities plan for our future.
• The NSW and Australian Regional Climate Modelling (NARCliM) project delivers climate projections for NSW.
• The climate projections and data used throughout the AdaptNSW website are based primarily on NARCliM projections.
• NARCliM projections are developed using scientifically reviewed methods and international best practice, and are continually being refined based on the latest available science.
• As new NARCliM generations are produced, the information on AdaptNSW is progressively updated.

NARCliM is a NSW Government-led initiative to produce regional-scale climate model data, including climate projections. It is the recommended source of climate projections to inform climate risk assessments and research into climate change risks facing NSW and south-eastern Australia.

Because the science behind NARCliM data advances over time, a new generation of NARCliM projections may be released before our science communicators have had time to translate them into new content and resources, and update AdaptNSW. Currently, the climate projections used throughout most of the AdaptNSW website rely on the third generation of NARCliM projections released in 2024 (known as NARCliM2.0). This includes data used in the interactive climate change projections map, climate data downloads and regional climate change snapshots.

More information about the NARCliM project and details of the different generations can be found on the NSW climate projections (NARCliM) page.