Less than 1° of warming

With minimal warming, south western Australia's global biodiversity hotspot will face the risk of extinction to some of its vulnerable species, and major habitat reductions.   Additionally, heatwave deaths will increase in Perth.

1-2°C of warming

Extinctions in the biodiversity hotspot will become very likely, and there will be a significant loss of coral reefs.

2-3°C of warming

Tropical cyclone rainfall will increase 20-30%, and wind speed will increase 5-10%. Annual heatwave deaths will increase in Perth from 290 (today) to 1,254-1,548. Moderate impacts will occur to water supply infrastructure and buildings in coastal settlements. Widespread coral reef loss and species extinctions will be very likely. Run-off into rivers will be reduced. 

Source: Climate Impacts and Emissions Targets

           Intergovernmental Panel on Climate Change Report: Implications for Australia