Heatwaves are becoming more extreme and frequent, making it harder to grow food crops.
Extreme temperatures are happening not just in summer, but also during critical spring flowering periods for crops such as wheat.
Summer saw areas of South Australia and New South Wales break all-time temperature records, with parts of SA pushing close to 50 degrees in the shade.
The extreme heat wiped out entire crops and highlighted a growing struggle for farmers with what is likely to become an even bigger challenge.